Year	Number
1970	440201.21875
1971	460298
1972	480006.0625
1973	492672
1974	530582.1875
1975	561622.375
1976	607589.1875
1977	652959.8125
1978	656313.8125
1979	671097.5625
1980	729246.8125
1981	753573.125
1982	810315.375
1983	951726.25
1984	1001371.625
1985	1053871.875
1986	1097755.125
1987	1091557
1988	1130341.25
1989	1298807.25
1990	1221720
1991	1279088.25
1992	1293503.375
1993	1341054.375
1994	1366553.125
1995	1383193.875
1996	1397268.875
1997	1460971
1998	1472085
1999	1499606.125
2000	1530896.875
2001	1568540.5
2002	1585062.25
2003	1569950.875
2004	1583666.375
2005	1616548.75
2006	1634718.125
2007	1637396.375
2008	1646116.625
2009	1645784.25
2010	1643814.75
2011	1661456.875
2012	1715767.25
2013	1793787.375
2014	1853336.5
2015	1914239.625
2016	1960228.625
2017	1968177.625
2018	2028243.875
2019	2099978.75
2020	2051304.25
2021	2067395.875
2022	2007409.125