Year	annual %
1960	5.4443273618724
1961	6.27914723477514
1962	5.26563234621733
1963	-2.69465535232731
1964	0.856793145737554
1965	4.10345873811618
1966	9.69034608375119
1967	-3.72633676514215
1968	-0.476059059060833
1969	10.155979202822
1970	13.757079924793
1971	15.9991148482235
1972	3.457649752015
1973	5.4026644539422
1974	12.674393177433
1975	33.9641883221777
1976	24.2999999999996
1977	15.0878340572687
1978	21.7092457416665
1979	11.7097306212117
1980	9.97226199001427
1981	20.8128229121949
1982	7.69774724714251
1983	23.2123315511559
1984	17.8205332860842
1985	7.4353448275863
1986	5.71715145436305
1987	11.2903225806452
1988	54.5112247797671
1989	50.4666881235916
1990	7.36440030557692
1991	13.0069731037427
1992	44.588842715023
1993	57.1652528349217
1994	57.031708911966
1995	72.8355022972637
1996	29.2682926829271
1997	8.52987421383639
1998	9.99637812386801
1999	6.61837339479756
2000	6.93329215565161
2001	18.8736462093862
2002	12.8765792031099
2003	14.0317836131437
2004	14.9980338183251
2005	17.8634933661605
2006	8.22522152017048
2007	5.3880079685863
2008	11.5810751748252
2009	12.5378277304689
2010	13.7400521363694
2011	10.8261371880017
2012	12.2242413020583
2013	8.49551838265678
2014	8.04741087967907
2015	9.00943498007699
2016	15.6968126387972
2017	16.5022662139641
2018	12.0951065173432
2019	11.3964223378115
2020	13.2460234276597
2021	16.9528457221608
2022	18.8471877843274
2023	24.6595502031139