Year	annual %
1991	30.29668631579802
1992	46.57017975842429
1993	19.408495500824557
1994	30.93079491417817
1995	22.588960448673046
1996	24.0754585930642
1997	8.089075288336646
1998	10.549739050101001
1999	19.49535351247416
2000	13.200793070496953
2001	6.168497817234099
2002	15.363108118967322
2003	2.0948075404680413
2004	22.51592944118296
2005	5.114067040578864
2006	29.67953384958661
2007	16.137015482212327
2008	13.302647875957332
2009	59.59442434919915
2010	10.521924612288316
2011	11.686011701839211
2012	4.143806779506918
2013	12.78373633925885
2014	7.842805652432457
2015	9.104842966859087
2016	6.052806661364132
2017	13.979977165718099
2018	6.390409566199638
2019	10.533627508929028
2020	8.07704826577039
2021	6.7611400875154635