Year	annual %
1961	1.3501538964218156
1962	1.244634712001286
1963	1.0883860113684278
1964	1.5039396790116086
1965	1.9198258112473496
1966	2.898778534683373
1967	3.151279365554416
1968	4.367188240536819
1969	4.958488449574787
1970	5.262728475668737
1971	5.06980750726423
1972	4.326126660240348
1973	5.4799234412211035
1974	8.99869300901824
1975	9.262790663152714
1976	5.503491912795937
1977	6.213332716425768
1978	7.033930655620011
1979	8.29672198172402
1980	9.033105387922475
1981	9.462164087492013
1982	6.17840414954172
1983	3.91690878504356
1984	3.6078793128998257
1985	3.1625252558363854
1986	2.013892535633957
1987	2.4773884667957446
1988	3.527499859378878
1989	3.920759480895228
1990	3.7433290993795794
1991	3.381811336110303
1992	2.2788543459214736
1993	2.370324836398936
1994	2.1351984181237356
1995	2.0966884865761415
1996	1.830764559334554
1997	1.72444795356148
1998	1.123865624955343
1999	1.4150981170953685
2000	2.2651951766986116
2001	2.2516899159740262
2002	1.5539946596134513
2003	1.9743147047601042
2004	2.6890876032200453
2005	3.135454556746552
2006	3.0838367335286563
2007	2.709258486586947
2008	1.9267096989953814
2009	0.6167807151257705
2010	1.2152866818694577
2011	2.0631094754314887
2012	1.8621649281276973
2013	1.7018803606723338
2014	1.74161805258845
2015	0.9280427947577294
2016	0.950322479212474
2017	1.7908032845466835
2018	2.2908902751168796
2019	1.6785078743474742
2020	1.3206183953191015
2021	4.5847453588969955
2022	7.041025943302358
2023	3.64499524971842