As of now, the United States reports a research & development by government, total in constant ppp $ 2017 index of 1,192, signifying an increase of 5 (0.4%) from 2021.
Research & development by government, total in constant PPP $ 2017 index in the United States
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United States Government R&D total in constant PPP $ 2017 index between 1981 and 2022
| Period | Value | Change |
|---|---|---|
| 2022 | 1,192 | +5 |
| 2021 | 1,187 | -40 |
| 2020 | 1,227 | +33 |
| 2019 | 1,194 | +66 |
| 2018 | 1,127 | +91 |
| 2017 | 1,037 | +13 |
| 2016 | 1,024 | -52 |
| 2015 | 1,076 | +1 |
| 2014 | 1,075 | +16 |
| 2013 | 1,058 | -38 |
| 2012 | 1,096 | -55 |
| 2011 | 1,151 | +15 |
| 2010 | 1,136 | +70 |
| 2009 | 1,066 | +49 |
| 2008 | 1,016 | +16 |
| 2007 | 1,000 | +30 |
| 2006 | 970 | +21 |
| 2005 | 948 | +13 |
| 2004 | 935 | -8 |
| 2003 | 943 | +32 |
| 2002 | 912 | +54 |
| 2001 | 858 | +92 |
| 2000 | 766 | +29 |
| 1999 | 737 | +18 |
| 1998 | 718 | +6 |
| 1997 | 713 | -4 |
| 1996 | 717 | -22 |
| 1995 | 739 | +8 |
| 1994 | 731 | -14 |
| 1993 | 745 | -10 |
| 1992 | 754 | +9 |
| 1991 | 745 | -27 |
| 1990 | 773 | -0 |
| 1989 | 773 | +11 |
| 1988 | 762 | +16 |
| 1987 | 746 | -1 |
| 1986 | 747 | +2 |
| 1985 | 745 | +40 |
| 1984 | 705 | +49 |
| 1983 | 656 | +50 |
| 1982 | 606 | +8 |
| 1981 | 598 |