Year	years
1990	69.525
1991	69.915
1992	70.285
1993	70.65
1994	70.951
1995	71.256
1996	71.558
1997	71.838
1998	72.077
1999	72.312
2000	72.449
2001	72.69
2002	72.965
2003	73.331
2004	73.595
2005	73.918
2006	74.143
2007	74.388
2008	74.522
2009	74.735
2010	75.091
2011	75.384
2012	75.664
2013	75.955
2014	75.519
2015	76.443
2016	76.685
2017	76.935
2018	77.137
2019	77.338
2020	76.683
2021	75.939
2022	75.948