Year	annual %
1960	38.5040374002647
1961	22.747263986796
1962	10.9074243811899
1963	21.2546957175585
1964	42.3694157015186
1965	56.5565565566607
1966	73.4626932061085
1967	89.2752972850379
1968	125.336991126492
1969	20.9666666659998
1970	16.3061449435998
1971	23.9530889061731
1972	76.4849237828812
1973	96.9972653187058
1974	77.213413779201
1975	81.4053840067419
1976	50.623049560462
1977	58.1961750215737
1978	44.5483436672392
1979	66.8442861850437
1980	63.4758304314673
1981	34.0453358609474
1982	18.9925012952182
1983	49.1973796505637
1984	55.3044235418763
1985	72.2225644287756
1986	76.3806364119544
1987	63.5666624326724
1988	62.1919564596004
1989	80.4474367280735
1990	112.525905573023
1991	101.971683202507
1992	68.4591938395374
1993	54.1007924425194
1994	44.7360421521933
1995	42.2483197983755
1996	28.3420486004309
1997	19.8188093183779
1998	10.8110703055616
1999	5.65868803927908
2000	4.76382472733251
2001	4.3593406521727
2002	13.9724725913515
2003	19.3797301743995
2004	9.15760507540997
2005	4.6992773903564
2006	6.39764974385131
2007	8.11464561179313
2008	7.87707374730888
2009	7.06221874388574
2010	6.69870886978132
2011	8.0928320630299
2012	8.09776580573602
2013	8.57513504005397
2014	8.87735333229828
2015	8.66626987079328
2016	9.6394134763508
2017	6.2180938256186
2018	7.60653360377047
2019	7.88198870879619
2020	9.75640636078194
2021	7.74791402314762
2022	9.10437983075437
2023	5.86910359896119