The table below shows the rise in the number of students studying for research degrees in history at any one time between 1935 and 2000.
| Year | Degrees |
| 1935 | 307 (100 PhD) |
| 1940 | 339 |
| 1945 | No figures |
| 1950 | 494 |
| 1955 | 1133 |
| 1960 | 1270 |
| 1965 | 1665 |
| 1970 | 2473 |
| 1975 | 3211 |
| 1980 | 3187 |
| 1985 | 3066 |
| 1990 | 2924 |
| 1995 | 3091 |
| 2000 | 3390 |
These figures are for all research degrees, as there is no easy way to differentiate.