Annual Spending on R&D by IT Firms Headquartered in California
| | IT Total |
| | 1985 |
| Dollars in billions | 2.791 |
| | IT Total |
| | 1986 |
| Dollars in billions | 3.829 |
| | IT Total |
| | 1987 |
| Dollars in billions | 4.066 |
| | IT Total |
| | 1988 |
| Dollars in billions | 4.013 |
| | IT Total |
| | 1989 |
| Dollars in billions | 4.822 |
| | IT Total |
| | 1990 |
| Dollars in billions | 5.42 |
| | IT Total |
| | 1991 |
| Dollars in billions | 6.172 |
| | IT Total |
| | 1992 |
| Dollars in billions | 7.047 |
| | IT Total |
| | 1993 |
| Dollars in billions | 8.026 |
| | IT Total |
| | 1994 |
| Dollars in billions | 7.791 |
| | IT Total |
| | 1995 |
| Dollars in billions | 9.794 |
| | IT Total |
| | 1996 |
| Dollars in billions | 13.128 |
| | IT Total |
| | 1997 |
| Dollars in billions | 14.692 |
| | IT Total |
| | 1998 |
| Dollars in billions | 16.346 |
| | IT Total |
| | 1999 |
| Dollars in billions | 18.84 |
| | IT Total |
| | 2000 |
| Dollars in billions | 21.571 |
| | IT Total |
| | 2001 |
| Dollars in billions | 23.481 |
| | IT Total |
| | 2002 |
| Dollars in billions | 21.266 |
| | IT Total |
| | 1985 |
| Dollars in billions | 2.791 |
| | IT Total |
| | 1986 |
| Dollars in billions | 3.829 |
| | IT Total |
| | 1987 |
| Dollars in billions | 4.066 |
| | IT Total |
| | 1988 |
| Dollars in billions | 4.013 |
| | IT Total |
| | 1989 |
| Dollars in billions | 4.822 |
| | IT Total |
| | 1990 |
| Dollars in billions | 5.42 |
| | IT Total |
| | 1991 |
| Dollars in billions | 6.172 |
| | IT Total |
| | 1992 |
| Dollars in billions | 7.047 |
| | IT Total |
| | 1993 |
| Dollars in billions | 8.026 |
| | IT Total |
| | 1994 |
| Dollars in billions | 7.791 |
| | IT Total |
| | 1995 |
| Dollars in billions | 9.794 |
| | IT Total |
| | 1996 |
| Dollars in billions | 13.128 |
| | IT Total |
| | 1997 |
| Dollars in billions | 14.692 |
| | IT Total |
| | 1998 |
| Dollars in billions | 16.346 |
| | IT Total |
| | 1999 |
| Dollars in billions | 18.84 |
| | IT Total |
| | 2000 |
| Dollars in billions | 21.571 |
| | IT Total |
| | 2001 |
| Dollars in billions | 23.481 |
| | IT Total |
| | 2002 |
| Dollars in billions | 21.266 |