Year	annual %
1961	22.11390283145724
1962	-2.0135366726994164
1963	10.96153097708003
1964	-9.104781115568443
1965	0.9193828059364932
1966	-5.55162051720562
1967	2.372924236650036
1968	-8.580168728655465
1969	3.125716959845832
1970	-2.0416046994327246
1971	2.6297479929791194
1972	6.715799952522431
1973	10.328671985565279
1974	7.173158825111756
1975	-0.6728864106619028
1976	21.772010654829145
1977	4.827831441193169
1978	2.4827281878759777
1979	1.7304916669332187
1980	-11.564925133105604
1981	4.3247798626644
1982	4.215300289046127
1983	-0.5351701221225369
1984	3.6092223905286716
1985	6.083876293714894
1986	8.90623690263321
1987	8.079466409078151
1988	6.0587191635791555
1989	3.6680908316904635
1990	6.425944037214904
1991	3.3141663995162105
1992	5.120444414639863
1993	3.843628000835153
1994	2.6883285166561848
1995	3.394776363454909
1996	4.513432613862605
1997	4.3724171399103255
1998	4.9625194260115535
1999	1.3147486670756336
2000	7.144715946915838
2001	2.5342628530189018
2002	0.9119102168812674
2003	5.16167044757961
2004	3.67780930188448
2005	1.1766990870534642
2006	4.3775868209085615
2007	5.246496965343809
2008	5.006539055308409
2009	3.0411004632039607
2010	4.12919884822152
2011	3.9110012406983685
2012	3.2094994788002538
2013	3.110405554377138
2014	3.6391900738820766
2015	3.5533569656273727
2016	3.791130707344365
2017	3.844308006398947
2018	3.9500354872733965
2019	2.85812532389771
2020	-14.548495592136206
2021	3.3776687343074485
2022	9.208545532896167
2023	7.07798040261261