Year	annual %
1961	5.180691476745025
1962	6.0863985189990615
1963	6.299405803081754
1964	4.984481717772169
1965	7.523660440351819
1966	6.22983698491764
1967	5.392966098640613
1968	4.53285162360541
1969	8.475261449252812
1970	7.047929159672606
1971	4.6637954754589686
1972	5.078763542742422
1973	4.071923338839298
1974	0.7985605944474798
1975	-2.469629012673778
1976	4.502977118432085
1977	4.412682374394649
1978	5.540172762619932
1979	6.589805340268057
1980	3.0107521873578236
1981	0.007746615679636193
1982	-2.604948582587781
1983	-3.33547311715175
1984	4.8817499168137175
1985	2.0957763451219478
1986	3.9750565251432874
1987	4.776533924434574
1988	4.911513149464142
1989	3.389951210796525
1990	-3.70170811331964
1991	1.5832278143703746
1992	3.8913165236801603
1993	3.766936256968023
1994	3.222679372963327
1995	3.587663909780204
1996	1.1723026874803253
1997	3.9099388004468096
1998	4.925886874421749
1999	4.863317331025058
2000	2.986751510034466
2001	6.086049154429119
2002	0.7864242695559795
2003	-0.00918394326077987
2004	8.726426357264529
2005	-1.845460368816262
2006	-0.9910299907492544
2007	-0.5822974381934074
2008	-1.266583453451105
2009	-1.41621087876716
2010	0.09210207177927998
2011	0.800573059973047
2012	1.2469693903962167
2013	0.8421590176583607
2014	0.43657353906216656
2015	0.7068609140008277
2016	0.6654284160503465
2017	-0.508345051404973
2018	-0.4101619326530539
2019	1.6646394462216136
2020	-6.746411290882975
2021	0.9656226656416038
2022	4.937605707249844
2023	1.0159420330886633