Year	%
1990	47.70675470595415
1991	48.73510241243283
1992	50.42142352550418
1993	52.53340718267292
1994	52.09129286608723
1995	51.229506408682795
1996	51.10384322180207
1997	50.79231328625997
1998	50.0484278848039
1999	49.121281401529565
2000	48.27428663185375
2001	47.2812172577087
2002	46.10908354468205
2003	45.34292881630192
2004	44.83776000163404
2005	44.5761893875453
2006	44.4458765732622
2007	44.393475026196576
2008	44.51985626268087
2009	44.686741382779424
2010	44.74861787131805
2011	44.886476803668586
2012	45.007735152871355
2013	45.2207971731838
2014	45.44132260104372
2015	45.65502837700359
2016	45.84161090772827
2017	45.9766082053917
2018	45.88649444049864
2019	46.12603369477349
2020	46.207539558439464
2021	46.28325337066047
2022	46.28401327283828