Year	Twin Births
2004	132219
2003	128665
2002	125134
2001	121246
2000	118916
1999	114307
1998	110670
1997	104137
1996	100750
1995	96736
1994	97064
1993	96445
1992	95372
1991	94779
1990	93865
1989	90118
1988	85315
1987	81778
1986	79485
1985	77102
1984	72949
1983	72287
1982	71631
1981	70049
1980	68339