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Journal Summary Usage Data

This page contains summary tables relating solely to article usage data. We have also provided detailed text describing the full range of article-level metrics at PLOS, detailed information about usage data in particular, and a summary Excel file containing the full data set.

Table of average lifetime usage per journal: mean values are shown per journal, per article type (Research Articles or non-Research Articles), according to the year of first publication

These tables contain summary usage data for the articles published by each PLOS journal and provide an indication of the typical usage levels that might be expected, at a journal level, for those articles originally published in any given year. As an example of how to read these tables, there were 33 Research Articles published in PLOS Biology in 2003 and as of 31st October 2010 their lifetime average usage was 12,400.

See notes at the bottom of this table.

Research Articles

2003 2004 2005 2006 2007 2008 2009 2010
Avg (n) Avg (n) Avg (n) Avg (n) Avg (n) Avg (n) Avg (n) Avg (n)
PLOSBiology 12400 (33) 10000 (176) 9800 (176) 7600 (185) 6900 (203) 5600 (197) 4300 (181) 3200 (160)
PLOSClinicalTrials n/a n/a n/a 3000 (25) 2400 (19) n/a n/a n/a
PLOSCompBiol n/a n/a 5700 (55) 4100 (136) 3500 (203) 3100 (251) 2200 (343) 1500 (321)
PLOSGenetics n/a n/a 6000 (66) 4500 (172) 4300 (210) 3400 (325) 2100 (436) 1500 (376)
PLOSMedicine n/a 10300 (13) 7200 (86) 6300 (145) 6500 (135) 9200 (110) 5300 (77) 3300 (74)
PLOSNTD n/a n/a n/a n/a 2800 (26) 2400 (133) 1100 (178) 700 (247)
PLOSONE n/a n/a n/a 8800 (137) 3000 (1229) 2200 (2716) 1600 (4400) 900 (5250)
PLOSPathogens n/a n/a 4200 (36) 4200 (97) 3500 (172) 2700 (271) 1800 (423) 1300 (415)

Non-Research Articles

2003 2004 2005 2006 2007 2008 2009 2010
Avg (n) Avg (n) Avg (n) Avg (n) Avg (n) Avg (n) Avg (n) Avg (n)
PloS Biology 8500 (65) 4700 (280) 3700 (255) 3000 (238) 5300 (118) 4800 (131) 4800 (83) 3500 (92)
PLOS Clinical Trials n/a n/a n/a 4400 (15) 1600 (9) n/a n/a n/a
PLOS Computational Biology n/a n/a 9600 (17) 5700 (32) 6600 (48) 6900 (36) 5500 (33) 4400 (20)
PLOS Genetics n/a n/a 4500 (11) 3900 (35) 4000 (20) 3300 (27) 2500 (37) 2300 (18)
PLOS Medicine n/a 7200 (55) 5600 (348) 4300 (342) 4000 (210) 4300 (140) 3900 (122) 3400 (87)
PLOS Neglected Tropical Diseases n/a n/a n/a n/a 3000 (16) 2200 (46) 1500 (46) 1100 (35)
PLOS ONE n/a n/a n/a n/a n/a n/a n/a n/a
PLOS Pathogens n/a n/a 4900 (5) 3900 (26) 4500 (25) 4300 (15) 3700 (36) 2900 (41)

Notes

  • Lifetime usage data are correct up to 31st October 2010 and are the sum of HTML page views, PDF downloads and XML downloads.
  • All averages are mean and have been rounded.
  • Only PLOS ONE contains no 'non-Research Articles'. Non-Research Articles are, for example, the reviews and 'journalistic' articles that appear at the front of the other journals.
  • We have also provided a summary Excel file containing the full data set, at the article level.
  • PLOS Clinical Trials journal was discontinued in 2007 and merged with PLOS ONE. Usage data are reported separately here.

Topic-based summary tables: mean average lifetime usage is shown for Research Articles only, listed per journal, per topic, according to the year of first publication

These tables contain summary usage data for the research articles published in each PLOS journal and provide an indication of the typical usage levels that might be expected for an article published in any given topic area in any specific PLOS journal, originally published in any given year. As an example of how to read these tables, there were 28 Research Articles published in PLOS Biology in 2006 in the topic area 'Biochemistry', and as of 31st October 2010 their lifetime average usage was 6,200.

PLOS Biology

See notes at the bottom of this page.

2004 2005 2006 2007 2008 2009 2010
Avg (n) Avg (n) Avg (n) Avg (n) Avg (n) Avg (n) Avg (n)
Biochemistry 7200 (4) 7700 (27) 6200 (28) 4400 (38) 4300 (39) 3500 (36) 2500 (35)
Biophysics 8200 (11) 6600 (11) 6100 (17) 5000 (18) 3400 (17) 4100 (24) 2000 (10)
Cell Biology 9100 (64) 9000 (42) 6700 (41) 5800 (57) 4500 (54) 3900 (70) 2600 (41)
Computational Biology 12500 (31) 11200 (42) 9800 (36) 8600 (35) 5700 (17) 5300 (21) 4000 (23)
Developmental Biology 8800 (32) 8600 (25) 6200 (30) 5600 (37) 4900 (36) 3700 (39) 2800 (32)
Ecology 12900 (20) 11800 (32) 8900 (45) 10300 (20) 7900 (21) 5600 (9) 3200 (5)
Evolutionary Biology 12900 (43) 12100 (66) 8100 (63) 9000 (44) 7100 (39) 5300 (25) 4200 (27)
Genetics and Genomics 11300 (71) 10400 (64) 8500 (49) 8600 (71) 5500 (57) 4200 (49) 4200 (44)
Immunology 7500 (17) 8200 (13) 4800 (12) 7600 (12) 4100 (15) 5600 (12) 2000 (12)
Infectious Diseases 8700 (17) 11300 (21) 6500 (14) 6900 (9) 5200 (18) 7400 (6) 1800 (8)
Microbiology 8200 (18) 8300 (28) 6200 (25) 9300 (22) 4800 (17) 4300 (12) 2400 (12)
Molecular Biology 11200 (38) 9200 (36) 6000 (45) 5700 (54) 4700 (36) 3800 (33) 3200 (26)
Neuroscience 9900 (26) 10600 (41) 5200 (49) 5300 (58) 6400 (50) 4100 (50) 2700 (36)
Physiology 15500 (9) 14900 (13) 5700 (16) 5400 (11) 4800 (9) 3600 (12) 2600 (8)
Plant Biology 11600 (4) 10100 (9) 7200 (11) 7100 (8) 4900 (12) 4200 (5) 2600 (9)
All Research Articles regardless of topic 10000 (176) 9800 (176) 7600 (185) 6900 (203) 5600 (197) 4300 (181) 3200 (160)

PLOS Computational Biology

See notes at the bottom of this page.

2006 2007 2008 2009 2010
Avg (n) Avg (n) Avg (n) Avg (n) Avg (n)
Biochemistry 5600 (96) 3300 (237) 2200 (448) 1400 (717) 900 (879)
Cell Biology 5600 (147) 3300 (392) 2300 (756) 1500 (1256) 900 (1378)
Developmental Biology 5800 (79) 3700 (199) 2600 (351) 1700 (531) 1000 (525)
Evolutionary Biology 6300 (214) 4500 (366) 3700 (461) 2800 (565) 1700 (607)
Genetics and Genomics 5700 (310) 4100 (640) 2900 (1058) 1800 (1542) 1200 (1515)
Immunology 5000 (111) 3000 (243) 2000 (470) 1500 (717) 900 (798)
Infectious Diseases 5900 (226) 3400 (422) 2400 (782) 1600 (1118) 1000 (1350)
Mathematics 8000 (39) 3700 (81) 2900 (131) 2100 (200) 1500 (209)
Microbiology 5100 (177) 4000 (249) 2500 (437) 1500 (658) 1000 (769)
Molecular Biology 5900 (138) 3600 (307) 2400 (496) 1700 (805) 1100 (757)
Neuroscience 6200 (102) 3800 (302) 2900 (599) 1900 (816) 1200 (838)
All Research Articles regardless of topic 4100 (136) 3500 (203) 3100 (251) 2200 (343) 1500 (321)

PLOS Genetics

See notes at the bottom of this page.

2006 2007 2008 2009 2010
Avg (n) Avg (n) Avg (n) Avg (n) Avg (n)
Biochemistry 5300 (13) 3200 (16) 3000 (26) 1500 (29) 1200 (39)
Cell Biology 3800 (24) 3100 (38) 2700 (77) 1600 (97) 1100 (84)
Computational Biology 4800 (55) 4900 (31) 3600 (44) 2500 (57) 2100 (37)
Developmental Biology 4400 (25) 3700 (39) 2900 (68) 1800 (78) 1300 (81)
Evolutionary Biology 4300 (63) 4800 (55) 4400 (64) 2200 (88) 1800 (72)
Infectious Diseases 4800 (11) 2700 (7) 2400 (13) 2700 (15) 1500 (12)
Microbiology 4500 (18) 3000 (17) 3000 (24) 1700 (40) 1200 (34)
Molecular Biology 3700 (15) 3300 (46) 2700 (81) 1800 (116) 1400 (92)
Neuroscience 4400 (5) 4300 (12) 3100 (21) 1700 (20) 900 (14)
Oncology 5000 (11) 3000 (7) 2500 (8) 1600 (11) 1800 (17)
Plant Biology 4500 (9) 3900 (8) 2700 (17) 2200 (28) 1400 (17)
All Research Articles regardless of topic 4500 (172) 4300 (210) 3400 (325) 2100 (436) 1500 (376)

PLOS Medicine

See notes at the bottom of this page.

2005 2006 2007 2008 2009 2010
Avg (n) Avg (n) Avg (n) Avg (n) Avg (n) Avg (n)
Cardiovascular Disorders 6400 (9) 5200 (25) 2700 (51) 2700 (103) 1500 (182) 900 (223)
Diabetes and Endocrinology 7500 (14) 7000 (31) 4500 (64) 2600 (139) 1600 (215) 1100 (229)
Genetics and Genomics 7500 (163) 5700 (310) 4100 (640) 2900 (1058) 1800 (1542) 1200 (1515)
Immunology 5700 (43) 5000 (111) 3000 (243) 2000 (470) 1500 (717) 900 (798)
Infectious Diseases 7400 (85) 5900 (226) 3400 (422) 2400 (782) 1600 (1118) 1000 (1350)
Neuroscience 9400 (63) 6200 (102) 3800 (302) 2900 (599) 1900 (816) 1200 (838)
Non-Clinical Medicine 11400 (16) 9900 (46) 7500 (35) 5100 (26) 1700 (44) 1600 (59)
Oncology 7800 (22) 5900 (61) 3200 (115) 2500 (192) 1600 (415) 900 (454)
Pediatrics and Child Health 4600 (4) 5800 (17) 4800 (41) 3100 (66) 1500 (101) 900 (111)
Public Health and Epidemiology 7600 (47) 7300 (133) 5000 (206) 3600 (356) 2000 (461) 1200 (599)
Virology 6100 (36) 5900 (83) 3400 (190) 2400 (302) 1700 (478) 1100 (531)
Women's Health 5600 (6) 4800 (14) 3900 (17) 3000 (41) 2800 (55) 1000 (62)
All Research Articles regardless of topic 7200 (86) 6300 (145) 6500 (135) 9200 (110) 5300 (77) 3300 (74)

PLOS Neglected Tropical Diseases

See notes at the bottom of this page.

2008 2009 2010
Avg (n) Avg (n) Avg (n)
Biochemistry 2200 (448) 1400 (717) 900 (879)
Cell Biology 2300 (756) 1500 (1256) 900 (1378)
Evolutionary Biology 3700 (461) 2800 (565) 1700 (607)
Genetics and Genomics 2900 (1058) 1800 (1542) 1200 (1515)
Immunology 2000 (470) 1500 (717) 900 (798)
Microbiology 2500 (437) 1500 (658) 1000 (769)
Molecular Biology 2400 (496) 1700 (805) 1100 (757)
Public Health and Epidemiology 3600 (356) 2000 (461) 1200 (599)
Virology 2400 (302) 1700 (478) 1100 (531)
All Research Articles regardless of topic 2400 (133) 1100 (178) 700 (247)

PLOS ONE

See notes at the bottom of this page.

2007 2008 2009 2010
Avg (n) Avg (n) Avg (n) Avg (n)
Biochemistry 3300 (237) 2200 (448) 1400 (717) 900 (879)
Biophysics 3700 (114) 2200 (197) 1500 (339) 900 (331)
Biotechnology 3800 (88) 2700 (179) 2000 (230) 1100 (260)
Cardiovascular Disorders 2700 (51) 2700 (103) 1500 (182) 900 (223)
Cell Biology 3300 (392) 2300 (756) 1500 (1256) 900 (1378)
Chemical Biology 5800 (32) 2700 (57) 1600 (95) 1000 (102)
Computational Biology 3900 (381) 2700 (578) 2000 (771) 1200 (849)
Computer Science 5000 (17) 3500 (54) 3300 (82) 1500 (123)
Dermatology 3700 (12) 2500 (40) 1600 (61) 1100 (63)
Developmental Biology 3700 (199) 2600 (351) 1700 (531) 1000 (525)
Diabetes and Endocrinology 4500 (64) 2600 (139) 1600 (215) 1100 (229)
Ecology 5100 (152) 3600 (259) 2700 (344) 1300 (513)
Evidence-Based Healthcare 5300 (20) 9000 (50) 3100 (67) 1400 (92)
Evolutionary Biology 4500 (366) 3700 (461) 2800 (565) 1700 (607)
Gastroenterology and Hepatology 3800 (43) 2000 (77) 1400 (122) 800 (157)
Genetics and Genomics 4100 (640) 2900 (1058) 1800 (1542) 1200 (1515)
Hematology 3200 (34) 2500 (68) 1500 (100) 900 (112)
Immunology 3000 (243) 2000 (470) 1500 (717) 900 (798)
Infectious Diseases 3400 (422) 2400 (782) 1600 (1118) 1000 (1350)
Marine and Aquatic Sciences n/a n/a 2500 (61) 1700 (156)
Mathematics 3700 (81) 2900 (131) 2100 (200) 1500 (209)
Mental Health 5800 (31) 8100 (64) 2600 (91) 1800 (112)
Microbiology 4000 (249) 2500 (437) 1500 (658) 1000 (769)
Molecular Biology 3600 (307) 2400 (496) 1700 (805) 1100 (757)
Neurological Disorders 3600 (94) 2900 (200) 1600 (319) 1100 (396)
Neuroscience 3800 (302) 2900 (599) 1900 (816) 1200 (838)
Non-Clinical Medicine 7500 (35) 5100 (26) 1700 (44) 1600 (59)
Nutrition 6400 (31) 6800 (42) 1900 (106) 1400 (95)
Oncology 3200 (115) 2500 (192) 1600 (415) 900 (454)
Ophthalmology 2500 (14) 2200 (34) 1800 (42) 800 (65)
Pathology 2900 (40) 2600 (94) 1700 (160) 1000 (170)
Pediatrics and Child Health 4800 (41) 3100 (66) 1500 (101) 900 (111)
Pharmacology 3900 (41) 2400 (93) 1600 (136) 1000 (188)
Physics 3800 (21) 2600 (48) 1900 (57) 2200 (81)
Physiology 4300 (97) 2500 (213) 1500 (288) 1000 (339)
Plant Biology 3700 (60) 3300 (110) 1800 (145) 1200 (163)
Public Health and Epidemiology 5000 (206) 3600 (356) 2000 (461) 1200 (599)
Radiology and Medical Imaging 5600 (24) 3700 (50) 1600 (66) 1100 (79)
Respiratory Medicine 4000 (30) 2800 (46) 1800 (104) 1500 (118)
Rheumatology 3400 (16) 2400 (19) 1500 (54) 800 (55)
Virology 3400 (190) 2400 (302) 1700 (478) 1100 (531)
Women's Health 3900 (17) 3000 (41) 2800 (55) 1000 (62)
All Research Articles regardless of topic 3000 (1229) 2200 (2716) 1600 (4400) 900 (5250)

PLOS Pathogens

See notes at the bottom of this page.

2006 2007 2008 2009 2010
Avg (n) Avg (n) Avg (n) Avg (n) Avg (n)
Biochemistry 5600 (96) 3300 (237) 2200 (448) 1400 (717) 900 (879)
Cell Biology 5600 (147) 3300 (392) 2300 (756) 1500 (1256) 900 (1378)
Computational Biology 5600 (244) 3900 (381) 2700 (578) 2000 (771) 1200 (849)
Evolutionary Biology 6300 (214) 4500 (366) 3700 (461) 2800 (565) 1700 (607)
Genetics and Genomics 5700 (310) 4100 (640) 2900 (1058) 1800 (1542) 1200 (1515)
Immunology 5000 (111) 3000 (243) 2000 (470) 1500 (717) 900 (798)
Microbiology 5100 (177) 4000 (249) 2500 (437) 1500 (658) 1000 (769)
Molecular Biology 5900 (138) 3600 (307) 2400 (496) 1700 (805) 1100 (757)
Pathology 5600 (29) 2900 (40) 2600 (94) 1700 (160) 1000 (170)
Public Health and Epidemiology 7300 (133) 5000 (206) 3600 (356) 2000 (461) 1200 (599)
Virology 5900 (83) 3400 (190) 2400 (302) 1700 (478) 1100 (531)
All Research Articles regardless of topic 4200 (97) 3500 (172) 2700 (271) 1800 (423) 1300 (415)

Notes

  • Lifetime usage data are correct up to 31st October 2010 and are the sum of HTML page views, PDF downloads and XML downloads.
  • Data are only provided for those years which represent a full year of publication (e.g. PLOS ONE launched in December 2006, and so no data is shown for that year).
  • Classification of each article into topic areas is taken from information supplied by the authors, on submission, and so may not be accurate or consistent. Articles are typically classified into more than one topic area, so their data will be recorded in each relevant topic summary.
  • For these tables we have chosen not to display data for subject areas that publish fewer than (approximately) 10 articles per year.
  • For journals which cover a well defined area (e.g. PLOS Genetics) we have not provided data for the sub-topic that is the 'primary' topic of the journal, as all published articles in the journal are related to that topic. Instead, we have provided the figures for the entire journal (in the final row of each table).
  • All averages are mean and have been rounded.
  • We have also provided a summary Excel file containing the full data set, at the article level.
  • A small number of articles have been excluded from this analysis as their usage levels have been affected by unintended (e.g. spam) usage. The list of affected articles can be found in the summary Excel file.