Table 4-10
Federal research and experimentation tax credit claims and corporate tax returns claiming credit: 1990–2006
 
Year Tax credit claims
($millions)
Tax returns
 
1990 1,547 8,699
1991 1,585 9,001
1992 1,515 7,750
1993 1,857 9,933
1994 2,423 9,150
1995 1,422 7,877
1996 2,134 9,709
1997 4,398 10,668
1998 5,208 9,849
1999 5,281 10,019
2000 7,079 10,495
2001 6,356 10,389
2002 5,656 10,254
2003 5,488 10,369
2004 5,554 10,244
2005 6,363 11,290
2006 7,311 10,788
 

SOURCE: Internal Revenue Service, Statistics of Income, special tabulations (historical data), http://www.irs.gov/taxstats/article/0,,id=164402,00.html (2006), accessed 19 June 2009.

Science and Engineering Indicators 2010