Year	Number
1978	1104900.375
1979	1140195.5
1980	1152121.75
1981	1175523.5
1982	1165738.25
1983	1191800.125
1984	1212973
1985	1312846.875
1986	1402785
1987	1509263.625
1988	1606144
1989	1692232.875
1990	1790756.375
1991	1852573
1992	1911499.25
1993	1974270.625
1994	2038493.25
1995	2126421.5
1996	2289562.5
1997	2434305.5
1998	2554324.5
1999	2711217.75
2000	2850885
2001	2889205.75
2002	3018839.25
2003	3237430.75
2004	3427681.75
2005	3662862.25
2006	3792500.5
2007	4129797.75
2008	4296300
2009	4413640
2010	4542977.5
2011	4574162.5
2012	4618440.5
2013	4578909
2014	4701457
2015	4851832.5
2016	4956522
2017	5129483.5
2018	5339455.5
2019	5479594
2020	5624279
2021	5861349
2022	6044843.5