Year	annual %
1966	1.7824171658314896
1967	-3.5426168466466237
1968	11.516580669249564
1969	1.11297594221125
1970	-6.229501236458148
1971	16.092063423019482
1972	2.4809745509755743
1973	40.30948964515767
1974	200.98638053940704
1975	2.374233950850055
1976	1.30002079495506
1977	6.000096104560228
1978	3.8022839556736585
1979	30.58227345520598
1980	51.105033515743
1981	3.6798601051888085
1982	-6.720210674871552
1983	-9.99902442030617
1984	-4.718298536474464
1985	-0.5120034549879051
1986	-20.634704765861386
1987	11.177850566821746
1988	1.318969037357249
1989	-2.7484672671107546E-07
1990	24.840924375203514
1991	-8.498091725217293
1992	1.2730751525085822
1993	-5.389373041470975
1994	-0.45045478529011973
1995	1.756166441465055
1996	7.415750275358832
1997	-2.2352341591162883
1998	-13.89656270619426
1999	11.038294431745157
2000	17.408725088143925
2001	-4.562533821459638
2002	4.703766357877242
2003	10.346627525788293
2004	13.007889512312815
2005	22.464622955579472
2006	13.63013362306961
2007	8.264113133770692
2008	33.75109699104161
2009	-25.128136668773934
2010	32.05301025390773
2011	15.884491777402005
2012	3.6064342687494673
2013	-2.220411853021943
2014	1.7572995490739487
2015	-19.146472518816566
2016	-9.13627527605452
2017	7.2979432978000744
2018	11.732294608451738
2019	-2.666161644767257
2020	-10.783678130400403
2021	12.695715219056254
2022	24.646351281688922
2023	-6.8575351609222395