Table 2.
Discipline size over time, frequency count by discipline presented first
| Discipline | No. of papers | Percentage of papers |
|---|---|---|
| Clinical Medicine | 4,393 | 21.09 |
| Physics | 3,060 | 14.69 |
| Chemistry | 2,993 | 14.37 |
| Engineering | 1,342 | 6.44 |
| Biology & Biochemistry | 1,253 | 6.01 |
| Plant & Animal Science | 1,252 | 6.01 |
| Materials Science | 749 | 3.60 |
| Molecular Biology & Genetics | 677 | 3.25 |
| Neuroscience & Behavior | 638 | 3.06 |
| Social Sciences, general | 566 | 2.72 |
| Geosciences | 565 | 2.71 |
| Environment/Ecology | 467 | 2.24 |
| Mathematics | 441 | 2.12 |
| Space Science | 397 | 1.91 |
| Microbiology | 341 | 1.64 |
| Psychiatry/Psychology | 339 | 1.63 |
| Immunology | 300 | 1.44 |
| Computer Science | 283 | 1.36 |
| Economics & Business | 250 | 1.20 |
| Pharmacology & Toxicology | 238 | 1.14 |
| Agricultural Sciences | 215 | 1.03 |
| Multidisciplinary | 73 | 0.35 |
| Total | 20,832 | 100 |