Year	Number
1970	1347048.25
1971	1410989.125
1972	1452806.625
1973	1501672.5
1974	1551587.25
1975	1579636.125
1976	1604170.875
1977	1669264.375
1978	1728153.875
1979	1822229.625
1980	1872140.25
1981	1914188.25
1982	1983761.625
1983	2018881.125
1984	2094101.375
1985	2126268.25
1986	2174242
1987	2220670.5
1988	2298786.5
1989	2314532
1990	2400907
1991	2382050.75
1992	2451494.75
1993	2511527.5
1994	2581528
1995	2630460.25
1996	2703899.75
1997	2751297
1998	2740514.5
1999	2738255
2000	2789895.5
2001	2885136.25
2002	2936365.75
2003	2952831.5
2004	2953405.75
2005	2974673
2006	2899628.75
2007	2911139.75
2008	2934763.25
2009	2950320
2010	2954857.75
2011	2959962.5
2012	2976410.25
2013	3037672.5
2014	3041042
2015	3039502
2016	3037951.5
2017	3048740.75
2018	3067143.75
2019	3066929.75
2020	3053201.5
2021	3049061.5
2022	3071203.5