Year	annual %
1961	4.882089942399233
1962	4.289408655647151
1963	-1.5597848324289885
1964	6.259865467771618
1965	8.361688169668597
1966	6.455329452871553
1967	6.76534982994292
1968	4.622274771925049
1969	5.4770998571186595
1970	-0.5884433644647231
1971	1.319513139492841
1972	-2.260795991446088
1973	2.1476457149787223
1974	-6.723987346386124
1975	-4.081732771481683
1976	4.078436940811599
1977	4.815951980062948
1978	6.358093782891245
1979	8.958617550016541
1980	2.0275447424971276
1981	-2.4568218066781498
1982	-1.743630913578258
1983	-0.29370760744443203
1984	5.435580697034851
1985	3.0398722352691863
1986	2.718387724801488
1987	1.5906720536599295
1988	3.457823472891235
1989	4.208880845455965
1990	-1.2229798799383502
1991	-1.5144270883738642
1992	-1.3671787603265102
1993	0.02762259797060551
1994	2.3764441553926474
1995	1.7644906639213502
1996	2.9129465877705485
1997	2.2715987558880073
1998	2.4752307903157487
1999	2.8785406448766935
2000	2.6502469898914
2001	0.3448255788620429
2002	1.2120339078903584
2003	0.9278987767641524
2004	1.9586203651615932
2005	2.4803131586291727
2006	3.663956872963638
2007	2.5243275407476915
2008	-0.2110629306551317
2009	-3.3164396484934144
2010	0.2998716996613098
2011	1.0831139203436777
2012	1.5996499244397882
2013	-0.7215501568594078
2014	0.9411715945043113
2015	-0.12050312184783252
2016	-0.3090214588726212
2017	1.152356710119733
2018	1.4963939096852954
2019	-0.030191112626198446
2020	-9.65568322089176
2021	9.655589953795939
2022	21.756749255566078
2023	11.979975781921908