Year	annual %
1977	40.08187932547032
1978	14.856307842182174
1979	13.346661819944265
1980	28.136191137954995
1981	12.067742877403747
1982	25.56018759770714
1983	17.967568849494562
1984	5.8777705181685675
1985	14.587140721050007
1986	14.996168106215954
1987	1.4859777733748807
1988	6.298807326423399
1989	9.518641577479839
1990	11.151934628167211
1991	9.366470531758768
1992	29.877849958614462
1993	89.62650393001293
1994	12.232344269557647
1995	14.013874584284242
1996	11.78916789366867
1997	9.910115159389852
1998	1.967909727485312
1999	16.775402598227615
2000	12.997900142529186
2001	9.719326962424475
2002	14.220931227471276
2003	8.59979566186541
2004	10.582618827349416
2005	15.779865392310663
2006	18.029385720180986
2007	10.73942654226507
2008	7.574490572496508
2009	3.46164227689795
2010	5.405454555665453
2011	4.584595413579803
2012	6.304484511361806
2013	11.412774162283169
2014	7.43705292616453
2015	6.23706658401735
2016	8.356229335141222
2017	6.5054530952427285
2018	1.3944373834582175
2019	8.448151687484446
2020	3.7604954765381353
2021	3.0341180480518246
2022	5.816848623885094