Year	annual %
1966	35.13438110294801
1967	16.58523157387654
1968	29.10690041910159
1969	28.721653255303586
1970	26.294665056475104
1971	-10.419889192001575
1972	7.082757754615095
1973	20.44388413275478
1974	7.263698546773448
1975	12.048110745489618
1976	26.276987888362296
1977	12.062937062937063
1978	-8.484449469721907
1979	30.144977401041583
1980	9.005479715439337
1981	7.896593539852277
1982	33.77029415671329
1983	11.067405002864234
1984	17.164666643743768
1985	23.36375641966251
1986	93.25153082343314
1987	54.25724682282153
1988	61.60920200651495
1989	65.19731338950025
1990	47.87864295322075
1991	97.30680293009492
1994	59.18716682153862
1995	55.472832814959524
1996	35.0089077523051
1997	25.05970570357663
1998	25.61432405768342
1999	27.69361214183281
2000	73.76265536560422
2001	8.713283324180445
2002	28.166511972277714
2003	24.97760168632016
2004	31.956642085954428
2005	3.2549670120770062
2006	44.04808804787245
2007	25.266457072070956
2008	23.22862457157821
2009	7.661231205949089
2010	29.85907512032457
2011	21.701980367034764
2012	17.859427185412365
2013	20.791579511770923
2014	12.618085298829431
2015	35.19247148848614
2016	-5.702272493623432
2017	21.356145665620595
2018	16.478007804877805
2019	12.54522468851342
2020	46.44354934081355
2021	3.657025083041022
2022	24.50389377685496
2023	24.57996131668379