Year	annual %
1966	16.450987375836004
1967	12.50594712159315
1968	7.182987978010029
1969	14.708037425318455
1970	15.871066014790063
1971	20.12382588045714
1972	11.068944822960427
1973	34.76042908224076
1974	36.642373640887755
1975	9.994821783032709
1976	-5.02859922636935
1977	32.97202623882619
1978	4.739922461354938
1979	0.8974914136231247
1980	12.598327983350382
1981	26.0464800572255
1982	14.484606972428422
1983	5.9361374943464496
1984	32.62165236132126
1985	-0.9933271695712752
1986	27.149523715384177
1987	36.754663404295364
1988	21.545780257754707
1989	6.055082456297978
1990	11.074762559070104
1991	25.438360310678547
1992	15.794111743113612
1993	39.858985941752934
1994	36.54495968301873
1995	56.225825369759555
1996	39.95849689015997
1997	2.07446163429444
1998	67.76226677094095
1999	27.989739433767557
2000	45.53217911761643
2001	23.72785625366238
2002	22.62712997833028
2003	27.475052854034566
2004	29.701472051632344
2005	16.246341026521453
2006	16.417530414588143
2007	36.59170411968432
2008	62.64021817511475
2009	24.626263504418084
2010	33.142407225805556
2011	35.656538584795896
2012	22.939185184861227
2013	35.07101529541327
2014	18.045497826962865
2015	28.0164784013677
2016	16.39872693502796
2017	17.332871560290315
2018	11.237109365778966
2019	10.193545348798366
2020	16.72750014093478
2021	30.041530968877765
2022	38.79937563722875
2023	32.24678247831741