Year	annual %
1960	1.00357570390172
1961	3.4474962304662
1962	4.19649888238551
1963	2.01854355976229
1964	3.28158694697213
1965	4.77377455386914
1966	3.90961779211889
1967	2.48211560474804
1968	4.69742798827245
1969	5.44666363048887
1970	6.36656841727441
1971	9.44483742337133
1972	7.07109839479797
1973	9.19603316657812
1974	16.0440111889861
1975	24.2072876743291
1976	16.5595225588084
1977	15.8402667458768
1978	8.26314103860768
1979	13.4212799774012
1980	17.9659242656857
1981	11.8766265142296
1982	8.59886383332186
1983	4.60930327269779
1984	4.96071097821927
1985	6.07139434015119
1986	3.42760940369314
1987	4.14892232052945
1988	4.15535171583102
1989	5.76024909185262
1990	8.06346090938833
1991	7.46178295746934
1992	4.59154929577461
1993	2.55857796929705
1994	2.21901260504205
1995	2.69749518304432
1996	2.85178236397749
1997	2.20114313510882
1998	1.82056163731557
1999	1.7529508005142
2000	1.18295624210408
2001	1.53234960272418
2002	1.52040245947455
2003	1.37650038542013
2004	1.39039756680422
2005	2.0891364902507
2006	2.4556616643929
2007	2.38656150773327
2008	3.52140856342539
2009	1.96173173560109
2010	2.49265472467065
2011	3.8561124468282
2012	2.5732347965453
2013	2.29166666666659
2014	1.45112016293279
2015	0.36804684232536
2016	1.0084173681141
2017	2.55775577557747
2018	2.29283990345938
2019	1.73810460086513
2020	0.989486703772491
2021	2.51837109614213
2022	7.92204883147902
2023	6.79396706793963