Table S1.
Change of total NIH budget
| Budget item | Amount in BRDPI million $ | Percent of total NIH budget | ||||
| Ave, 1996 | Ave, 2013 | Ratio, % | Ave, 1996 | Ave, 2013 | Ratio, % | |
| Total training | 737 | 763 | 103.5 | 3.5 | 2.5 | 71.3 |
| Administration | 1,341 | 2,311 | 172.3 | 6.3 | 7.5 | 118.8 |
| Intramural research | 2,387 | 3,422 | 143.4 | 11.3 | 11.1 | 98.9 |
| R and D contracts | 1,450 | 3,015 | 207.9 | 6.8 | 9.8 | 143.4 |
| Centers and other research | 2,950 | 4,760 | 161.4 | 13.9 | 15.5 | 111.2 |
| Total non-R01 RPG | 3,347 | 5,843 | 174.6 | 15.8 | 19 | 120.4 |
| Total R01 grants | 8,978 | 10,622 | 118.3 | 42.4 | 34.6 | 81.6 |
| All items | 21,190 | 30,737 | 145.1 | 100 | 100 | 100 |
The 3-y average of NIH budget items change from 1996 (average 1995–1997) to 2013 (average 2012–2014). Values and percentage ratios are given for the amount in BRDPI-corrected million dollars and as a percentage of the total NIH budget. As a percentage of total, four items, R and D contracts, centers and other research, administration, and non-R01 RPG grants, increased by 43%, 11%, 19%, and 20%, respectively. Two other items, R01 grants and training, decreased by 18% and 29%, respectively.