Table 1 Subject areas of the retrieved documents
Rank | Subject area | Frequency N = 5960 | %a |
|---|---|---|---|
1 | Environmental Science | 3036 | 50.9 |
2 | Agricultural and Biological Sciences | 2333 | 39.1 |
3 | Social Sciences | 1597 | 26.8 |
4 | Earth and Planetary Sciences | 982 | 16.5 |
5 | Biochemistry, Genetics and Molecular Biology | 533 | 8.9 |
6 | Energy | 403 | 6.8 |
7 | Medicine | 397 | 6.7 |
8 | Engineering | 382 | 6.4 |
9 | Economics, Econometrics and Finance | 331 | 5.6 |
10 | Multidisciplinary | 218 | 3.7 |