Year	Total
1980	22919292000
1981	22894740000
1982	22571472000
1983	23031140000
1984	23421244000
1985	23391236000
1986	23152536000
1987	23132076000
1988	34780636000
1989	35470820000
1990	35510376000
1991	35592216000
1992	35627680000
1993	35649504000
1994	35650868000
1995	35661780000
1996	35660416000
1997	35674056000
1998	35674056000
1999	35843192000
2000	35841828000
2001	35832280000
2002	35844556000
2003	35836372000
2004	36051884000
2005	36038244000
2006	36043700000
2007	36038244000
2008	36017784000
2009	36090076000
2010	36080528000
2011	36200560000
2012	36261940000
2013	36261940000
2014	36418800000
2015	36361512000
2016	36343780000