Year	Number of Girls
1971	492100
1972	507400
1973	518651
1974	527655
1975	530234
1976	490797
1977	474670
1978	455237
1979	214640
1980	139821
1981	133482
1983	192606
1985	235600
1986	230874
1987	216710
1988	193677
1989	235884
1993	406958
1996	481423
1999	303641
2000	328450
2004	268517
2007	292792