Year	%
1990	44.3671766342142
1991	45
1992	45.4900260190807
1993	45.9219858156028
1994	46.2197282929711
1995	46.4456166792263
1996	46.5670348711284
1997	46.6590519703027
1998	46.6926729986431
1999	46.7210591133005
2000	46.7403628117914
2001	46.7802022352315
2002	46.8238874096615
2003	46.8650502081803
2004	46.9295101553166
2005	47.043611143764
2006	47.2157502329916
2007	47.4503426646533
2008	47.7243627051566
2009	48.0464625131996
2010	48.3828775267539
2011	48.5956416464891
2012	48.6669958035053
2013	48.8732217046456
2014	49.1030240902101
2015	49.2770613520907
2016	49.3527080581242
2017	49.4133333333333
2018	49.5503959200107
2019	49.6175010065763
2020	49.5862253069941
2021	49.4313673631315
2022	49.2695016957996