Year	%
1992	32.68466
1993	7.298625
1995	35.13675
1996	36.7929
1997	35.84802
1998	50.04288
1999	46.20511
2000	43.23831
2001	39.01847
2002	55.56794
2003	28.46812
2004	37.48459
2005	23.11772
2006	23.7862
2007	25.5828
2008	25.87377
2009	25.4997
2010	25.21231
2011	25.28094
2012	24.55474
2013	24.95428
2014	25.3991
2015	24.93391
2016	25.33467
2017	25.51559
2018	27.05132
2019	26.10424
2020	25.66757
2021	25.07896