Year	annual %
1961	-10.196687366616532
1962	12.721284474269288
1963	4.090577068112156
1964	14.814035087017945
1965	2.350100850817842
1966	20.68197426102131
1967	15.604093266299943
1968	24.878650127128438
1969	13.09881265767244
1970	-11.4786382537251
1971	16.075775409821556
1972	24.21650606578221
1973	32.290740614153314
1974	48.52092608513903
1975	8.75703449419953
1976	38.03782340422437
1977	21.04916921092495
1978	5.694445608130592
1979	25.844768303395526
1980	30.137675446677285
1981	11.62282172796771
1982	-6.159968224521994
1983	-18.941819560503337
1984	19.806953534391617
1985	-13.838527628561991
1986	-19.92681933691951
1987	-5.211826733364904
1988	-20.620503999269207
1989	-7.637603864865435
1990	50.32698415862756
1991	5.991209256585978
1992	4.441768875992453
1993	46.76380039332866
1994	39.101536667075976
1995	6.772149053536154
1996	12.429055075294562
1997	9.081171353734542
1998	-16.37096406632762
1999	-50.81202675348878
2000	47.00314968561256
2001	31.758946622180755
2002	36.12216213728318
2003	17.89178166702337
2004	24.36939240464311
2005	19.559997603043403
2006	12.971002324286566
2007	16.106775852490266
2008	23.9021771334509
2009	7.088880373871826
2010	16.43795052716892
2011	16.618841578245465
2012	16.95915288977775
2013	13.956723737798294
2014	14.940660271367772
2015	-4.826604284440277
2016	17.833465650972396
2017	-20.010244634336203
2018	4.676518278769989
2019	8.854971412914894
2020	9.958348707260805
2021	12.604652807399761
2022	10.12042473210735
2023	5.215589167545451