Year	annual %
1961	9.5727237654321
1962	8.991681704150345
1963	12.425294782749152
1964	10.193599367838798
1965	9.742820822060692
1966	12.911369846738744
1967	9.45416283046166
1968	12.766468792809249
1969	10.575222181965431
1970	4.822388836420408
1971	8.87193159878643
1972	13.365985475426449
1973	13.628508432155414
1974	8.429043423536815
1975	26.94526063771901
1976	11.729294661142067
1977	9.283114093044272
1978	6.438200143539177
1979	10.214671543011265
1980	11.711819548061557
1981	10.845288409649214
1982	11.071430489440228
1983	27.792094766485825
1984	17.208462917995178
1985	18.36056154350219
1986	9.416147577645171
1987	6.508571912840172
1988	5.5321011172321475
1989	1.3205601570036256
1990	6.526592252133947
1991	3.9308021038790266
1992	-0.7399397452219226
1993	19.706617288278043
1994	-9.951172591169154
1995	6.212688251711917
1996	8.143561872022484
1997	6.818733821221411
1998	3.3254713786886483
1999	-0.8920519761466701
2000	-5.165168722188456
2001	3.5651209849359997
2002	4.241608487409175
2003	-2.174690514867782
2004	2.727368829063744
2005	14.417041127842761
2006	11.478944317863853
2007	17.165674254121853
2008	7.000270649971166
2009	4.528667498489491
2010	7.878265509245008
2011	-5.936200096383097
2012	2.0483021119218296
2013	-9.37354206731861
2014	14.103226429552205
2015	9.911316313135025
2016	-7.204906581267431
2017	5.161180208351275
2018	1.5009067978570387
2019	5.807757080363928
2020	9.839544598352806
2021	-1.0465228502329857
2022	10.902527553818512
2023	5.5289135927977595