Year	annual %
1961	2.802811260841054
1962	3.0301826326870582
1963	3.4563610463355445
1964	4.1846288222329875
1965	2.3623121214866316
1966	3.59364081326936
1967	3.1462220056261927
1968	3.022718324108382
1969	3.334312403135833
1970	4.272866907501246
1971	5.224137384234773
1972	6.8343527266781265
1973	15.752314743952596
1974	24.48233740257637
1975	16.229944283652173
1976	9.963858031396086
1977	14.25011961625897
1978	9.021906752928992
1979	15.368706979464932
1980	19.046388911301506
1981	11.568852534747393
1982	7.512025238453603
1983	7.496956847108407
1984	15.737532092894213
1985	10.420210832766202
1986	9.38727107753951
1987	10.14438326894971
1988	12.72883171456536
1989	12.129493238722503
1990	25.008687485377806
1991	21.390982300084445
1992	11.30074367281236
1993	10.43557217032128
1994	12.573370441994285
1995	11.076427188031019
1996	6.581718610619774
1997	4.915154726667652
1998	5.37109035742958
1999	3.882996065208303
2000	5.606065140857353
2001	4.27714698160932
2002	3.4760208551481924
2003	5.331077197509515
2004	7.024761706878223
2005	6.667724557185025
2006	6.7742741191329685
2007	6.625507168286006
2008	8.778552723675602
2009	3.6001752730532814
2010	5.443413315424863
2011	5.8440989281363045
2012	4.542214937769046
2013	2.92309825170382
2014	2.4324410850177856
2015	2.7732812185904834
2016	2.67571827706805
2017	3.643521386905043
2018	2.4679567190971667
2019	3.0115339588279753
2020	1.6530534807468698
2021	4.807757546267176
2022	7.25403854960863
2023	4.697411400987569