Table 5-16
Authors per S&E article, by field: 1988, 1993, 1998, 2003, and 2008
 
Field 1988 1993 1998 2003 2008
 
All fields 3.1 3.4 3.8 4.2 4.7
Engineering 2.5 2.8 3.1 3.4 3.8
Astronomy 2.5 3.2 3.6 4.5 5.9
Chemistry 3.1 3.3 3.6 3.9 4.3
Physics 3.3 3.8 4.2 4.7 5.3
Geosciences 2.4 2.7 3.2 3.5 4.0
Mathematics 1.5 1.6 1.8 1.9 2.0
Computer sciences 1.9 2.0 2.3 2.6 3.0
Agricultural sciences 2.7 2.9 3.3 3.8 4.3
Biological sciences 3.3 3.7 4.2 4.6 5.3
Medical sciences 3.6 4.1 4.5 5.0 5.6
Other life sciences 2.0 2.1 2.4 2.9 3.2
Psychology 2.0 2.2 2.5 2.8 3.2
Social sciences 1.4 1.5 1.6 1.8 1.9
 

NOTE: Articles classified by year they entered database rather than year of publication.

SOURCES: Thomson Reuters, Science Citation Index and Social Sciences Citation Index, http://thomsonreuters.com/products_services/science/; The Patent BoardTM; and National Science Foundation, Division of Science Resources Statistics, special tabulations.

Science and Engineering Indicators 2010