Regional totals	Periodo	Total
National Total	2023	53,42
National Total	2022	53,63
National Total	2021	53,5
National Total	2020	53,7
National Total	2019	53,84
National Total	2018	53,8
National Total	2017	53,5
National Total	2016	53,16
National Total	2015	52,75
National Total	2014	51,97
National Total	2013	50,93
National Total	2012	50,12
National Total	2011	49,35
National Total	2010	48,44
National Total	2009	47,7
National Total	2008	47,17
National Total	2007	47,26
National Total	2006	47,36
National Total	2005	47,16
National Total	2004	47,77
National Total	2003	48,13
National Total	2002	48,4
National Total	2001	48,26
National Total	2000	48,23
National Total	1999	48,37
National Total	1998	48,6
National Total	1997	48,92
National Total	1996	49,49
National Total	1995	50,1
National Total	1994	50,96
National Total	1993	51,8
National Total	1992	52,81
National Total	1991	53,82
National Total	1990	54,82
National Total	1989	55,71
National Total	1988	56,62
National Total	1987	57,37
National Total	1986	58,22
National Total	1985	59,05
National Total	1984	60,09
National Total	1983	61,2
National Total	1982	62,31
National Total	1981	63,25
National Total	1980	64,1
National Total	1979	64,64
National Total	1978	64,9
National Total	1977	64,94
National Total	1976	65,03
National Total	1975	64,89