Year	annual %
1961	6.7127211597127605
1962	6.857356475697994
1963	6.886059293799465
1964	6.572720558784304
1965	11.357765662409577
1966	10.935134660663834
1967	10.415098172624528
1968	10.066924408748386
1969	9.702766484468944
1970	9.373534861827409
1971	9.01347883059162
1972	8.784913484811815
1973	9.078169866475315
1974	7.2963219734114
1975	7.524931968696745
1976	7.5829444015598355
1977	7.462417316412825
1978	7.348187472197887
1979	7.232699199242138
1980	7.0611142842966865
1981	6.833741497284955
1982	6.646232063181722
1983	6.475361066964788
1984	5.70188217339908
1985	3.503705249353305
1986	3.1674668589188983
1987	2.9731291397702986
1988	2.8352364295598695
1989	2.734345858937687
1990	2.6277529835307045
1991	2.5189580489602856
1992	2.41366711405808
1993	2.2993590870834413
1994	2.1683780450551695
1995	2.0289839650309927
1996	1.892541733157784
1997	1.7793782811646734
1998	1.6946360350078016
1999	1.6541379434642691
2000	2.0304872844519832
2001	2.4730340797443913
2002	2.5891162215940815
2003	2.6898776483127556
2004	2.777580379589122
2005	2.819492847715957
2006	2.5167088391849646
2007	2.2893696353951563
2008	2.380374404206521
2009	2.3580997798350776
2010	2.326864754299216
2011	-4.505691471668584
2012	-4.980317036718544
2013	2.256390947143
2014	2.183603882131307
2015	1.8672056721208374
2016	1.7823802134045066
2017	1.8652385030804113
2018	1.904865083062526
2019	1.762139684648727
2020	1.6534308980398191
2021	1.5897526146985907
2022	1.5172381274959474
2023	1.483354971721069