Year	annual %
1961	5.537979316845167
1962	2.6486751129526738
1963	4.138267581570318
1964	6.124353737628425
1965	3.480174917995498
1966	5.642861410932824
1967	3.0080477977552107
1968	4.472312782460747
1969	6.275867166069887
1970	7.122875502133994
1971	5.114968584995623
1972	6.2078610864111
1973	4.890435317152878
1974	3.9421380710437575
1975	-0.36373543405353814
1976	4.57844543332115
1977	5.079980594259155
1978	-0.2106536951626765
1979	5.356699900251158
1980	1.7314855954991657
1981	-0.14429469056661048
1982	2.0112547075435145
1983	2.9730880303121268
1984	0.05127476296684108
1985	2.498678497484292
1986	2.301393211972396
1987	1.3571680641544077
1988	3.295879898430144
1989	3.887074817820519
1990	4.345641399478211
1991	3.441627776694588
1992	2.0935246170918305
1993	0.5268092037064918
1994	2.4021190737988576
1995	2.6679835308954836
1996	2.3495338516972737
1997	2.0935993895239164
1998	3.581425814604472
1999	3.5563312466417187
2000	3.3757221470847725
2001	1.2671681892299205
2002	1.651553921866693
2003	0.9414709207253367
2004	2.735120222410231
2005	2.2440653246387825
2006	3.454041836141215
2007	3.727415300935192
2008	1.4604236757385962
2009	-3.764578177916775
2010	1.837093676800535
2011	2.92279728368581
2012	0.680445576816723
2013	0.025504712197218282
2014	0.6612728488526045
2015	1.0145015859051085
2016	1.9894371623046254
2017	2.2585724325067105
2018	2.425385360880611
2019	1.4505291839319199
2020	-6.632991436625531
2021	4.2378667325325665
2022	4.806430201784593
2023	-0.8288150889632249