Slide 2 shows both the total active USGS streamgages from 1980 to 2005 (the blue line) and the number of streamgages designated as NSIP Federal-goal streamgages active from 1980 to 2004 (the red line).
| Year | Total Active USGS Streamgages | Total NSIP Federal-Goal Stremagages |
|---|---|---|
| 1980 | 7822 | 2991 |
| 1981 | 7777 | 2974 |
| 1982 | 7328 | 2928 |
| 1983 | 7069 | 2901 |
| 1984 | 6921 | 2874 |
| 1985 | 6997 | 2898 |
| 1986 | 6999 | 2895 |
| 1987 | 6875 | 2864 |
| 1988 | 6910 | 2884 |
| 1989 | 7080 | 2928 |
| 1990 | 7031 | 2911 |
| 1991 | 7015 | 2905 |
| 1992 | 6952 | 2877 |
| 1993 | 6907 | 2852 |
| 1994 | 6934 | 2839 |
| 1995 | 6798 | 2776 |
| 1996 | 6742 | 2755 |
| 1997 | 6735 | 2757 |
| 1998 | 6819 | 2785 |
| 1999 | 6951 | 2799 |
| 2000 | 7099 | 2813 |
| 2001 | 7244 | 2832 |
| 2002 | 7445 | 2904 |
| 2003 | 7533 | 2933 |
| 2004 | 7451 | 2897 |
| 2005 | 7364 |