|
|
|
| Year | Returns Filed* |
| 1981 | 93,052,000 |
| 1982 | 94,013,000 |
| 1983 | 95,419,000 |
| 1984 | 95,541,300 |
| 1985 | 96,496,900 |
| 1986 | 99,529,000 |
| 1987 | 101,750,800 |
| 1988 | 103,251,000 |
| 1989 | 107,029,000 |
| 1990 | 109,868,400 |
| 1991 | 112,304,900 |
| 1992 | 113,829,200 |
| 1993 | 114,718,900 |
| 1994 | 113,754,400 |
| 1995 | 114,683,400 |
| 1996 | 116,059,700 |
| 1997 | 118,362,600 |
| 1998 | 120,342,400 |
| 1999 | 121,829,470 |
| 2000 | 124,887,140 |
| 2001 | 127,097,210 |
| 2002 | 129,444,947 |
| 2003 | 130,341,159 |
| 2004 | 130,134,277 |
| 2005 | 130,576,852 |
| 2006 | 132,275,830 |