Year	Number
1970	1269160.625
1971	1330468.875
1972	1371633.25
1973	1417602.5
1974	1460109.625
1975	1482553.125
1976	1504179.25
1977	1565293.625
1978	1619147
1979	1713056.25
1980	1757600.375
1981	1802430.875
1982	1873335.75
1983	1907150.5
1984	1981964.25
1985	2017245.375
1986	2066846
1987	2114570.75
1988	2193677.5
1989	2209855
1990	2297460.5
1991	2279501.75
1992	2345273
1993	2403241.75
1994	2472869.25
1995	2523294.75
1996	2579469.25
1997	2630972
1998	2620711.25
1999	2617540
2000	2669048
2001	2761047.25
2002	2814987
2003	2835066.25
2004	2833457.25
2005	2855900.5
2006	2778107.25
2007	2786744.75
2008	2811077.75
2009	2824977.75
2010	2828562.75
2011	2839859.25
2012	2862266.75
2013	2925354.5
2014	2931055.75
2015	2931624.75
2016	2930999.25
2017	2944281.75
2018	2966219.25
2019	2966905.5
2020	2949373
2021	2941686.25
2022	2962774.5