Year	%
1997	40.4011461318052
1998	40.4011461318052
1999	42.6934097421203
2000	42.6934097421203
2001	42.6934097421203
2002	44.9856733524355
2003	45.2722063037249
2004	45.2722063037249
2005	45.2722063037249
2006	47.2779369627507
2007	46.9914040114613
2008	46.9914040114613
2009	46.4183381088825
2010	44.9856733524355
2011	44.6991404011461
2012	44.6991404011461
2013	44.9856733524355
2014	44.6991404011461
2015	43.5530085959885
2016	43.5530085959885
2017	43.5530085959885
2018	46.1318051575931
2019	47.2779369627507
2020	46.9914040114613
2021	46.9914040114613
2022	46.4183381088825
2023	46.4183381088825