Year	annual %
1961	3.071444281440506
1962	1.911060869379483
1963	3.7628821010602422
1964	0.5927806296394067
1965	-0.9564049625608675
1966	9.212095090702206
1967	1.7870622468578716
1968	1.788618805629966
1969	2.1641496589198255
1970	0.1265571335357123
1971	7.626475169975947
1972	-2.594407057208713
1973	-6.522536137717125
1974	0.7700674929085807
1975	-14.277313153735605
1976	2.243719597791653
1977	8.783545030408362
1978	6.077650173669284
1979	6.820629738549471
1980	6.4284926163921625
1981	4.989543451830514
1982	-12.293953063537785
1983	-6.358547872094206
1984	2.6361502807801287
1985	2.5025718489517885
1986	3.7937558469706403
1987	4.799998671976908
1988	5.636639573246711
1989	8.16316784441375
1990	1.674318521741398
1991	6.06294117568433
1992	9.389369282774169
1993	4.943403872948863
1994	3.4611907190612783
1995	7.375838247552721
1996	5.351007610555044
1997	5.986326528505188
1998	2.8786691362142136
1999	-1.4542556161336506
2000	3.772356977465023
2001	2.0099365122760275
2002	2.0861107091106277
2003	3.631566467014551
2004	5.61634007452696
2005	4.807518063018364
2006	5.015991123548176
2007	4.142002320757257
2008	2.755800959596357
2009	-2.1283005713077046
2010	4.788942687230076
2011	5.176036998030753
2012	5.125738379883856
2013	2.3164001177072606
2014	0.7729278203277659
2015	1.105758380938056
2016	0.5502978514443839
2017	-0.21326644224498637
2018	2.1390781809853507
2019	-1.1523372236425473
2020	-7.411878829684866
2021	10.232399264884862
2022	1.4832123660426362
2023	0.08676787337383018