Year	annual %
1961	2.690439426886394
1962	3.3335039151135013
1963	2.757586432072553
1964	2.847334291321672
1965	2.3797360490037693
1966	2.460637846204844
1967	2.3264060828461277
1968	1.4079943375108173
1969	1.4141462951771766
1970	1.8656080397976509
1971	1.967320426320832
1972	2.1700618410948858
1973	2.350128947402001
1974	2.472910041404828
1975	2.325494441216485
1976	1.1911897793775046
1977	0.43173378890778885
1978	0.15348156457467843
1979	-0.27276185418822535
1980	0.24527268894269172
1981	0.4841880407421888
1982	1.0425854260993093
1983	1.4073506391975532
1984	0.9142338042644851
1985	0.6656391877269962
1986	0.10315089343320295
1987	1.153901488511477
1988	0.5632678323731399
1989	0.7620726300505397
1990	1.202097772752557
1991	5.090113659192616
1992	1.2217061005170595
1993	1.3174815827659088
1994	1.5050467664935567
1995	1.6386733197439587
1996	1.7543346757677005
1997	1.4068308501019504
1998	0.9804911448974347
1999	0.6186107573118167
2000	0.6806132084266525
2001	0.6811004200362389
2002	1.8079801668730893
2003	2.043170656705715
2004	1.5557902659874145
2005	1.1982972553914122
2006	1.2872729251930273
2007	0.8629523764255801
2008	0.7791703764664135
2009	0.9301823304200217
2010	1.0421016599329491
2011	0.6928208548870795
2012	0.6190424838937052
2013	0.837960846621025
2014	1.7305681183892005
2015	2.1055579734770324
2016	2.3143339994473453
2017	2.1650832372180293
2018	1.8744788997060904
2019	1.6801011076142907
2020	2.301713162836472
2021	0.5174265753449936
2022	0.22476741811551432
2023	2.164558839418347