Year	annual %
1961	-1.6994352734466471
1962	-1.706776703252936
1963	-1.6614274225052916
1964	-1.6716209987538089
1965	-1.6673937173526043
1966	-1.7288271501931556
1967	-1.594256372159858
1968	-1.5323803421490656
1969	-1.4947621999057688
1970	-1.5668239168284266
1971	-0.6513873243835031
1972	-1.5169150572360874
1973	-1.5283507660071922
1974	-1.642784825789225
1975	-1.7330582354279473
1976	0.12823583308350575
1977	0.7266391219714976
1978	0.6680492976527797
1979	0.6040496506818172
1980	0.549194894502046
1981	0.31627732065534314
1982	0.22897441144347336
1983	0.2287258704249018
1984	0.17927621603465793
1985	0.15897552585963723
1986	0.0027859792610598665
1987	-0.06771345570482921
1988	-0.13231372993403218
1989	-0.14729694747832547
1990	-0.22269677237881447
1991	-0.2002622178835059
1992	-0.23882432241610138
1993	-0.28509566967744604
1994	-0.32928821584311807
1995	-0.3776173804078757
1996	-0.3616335733104057
1997	-0.3445250568079543
1998	-0.30985537380961276
1999	-0.3977439392703875
2000	-0.42112645110830205
2001	-6.245690116868074
2002	-8.4113825365677
2003	-8.6036279447928
2004	-8.951359566825001
2005	-9.104530570118476
2006	-8.416281441744564
2007	-8.20164889648069
2008	-8.369362562391698
2009	-8.49279852490185
2010	-8.560655094034818
2011	-3.02222331281868
2012	-1.0482042206652986
2013	-1.0293358026350505
2014	-1.0256564703762046
2015	-0.9955315541575444
2016	-0.9368198334992748
2017	-0.9990972413550233
2018	-1.0883729868817558
2019	-1.1233272812215107
2020	-1.311155576031889
2021	-1.4996533320748844
2022	-1.5317638237732754
2023	-1.5872391506449