Year	annual %
1961	1.5754695501180158
1962	1.8743432565601899
1963	1.8372872239637703
1964	1.9758565096924627
1965	2.1206435075989467
1966	2.0588856327324603
1967	1.805278456887665
1968	1.5629730633506878
1969	1.663924976362829
1970	1.8595893149814746
1971	1.3387895295306993
1972	0.6907399831177319
1973	0.5587405797428283
1974	0.6714106352119348
1975	0.6550708635847704
1976	0.45067654093108755
1977	0.44087514682176215
1978	0.3767808257228006
1979	0.30499268215976577
1980	0.28848354215459965
1981	0.13556396248934247
1982	0.05719808215608578
1983	0.04526103206519983
1984	0.0908792626998648
1985	0.16517045427696045
1986	0.23256696455793008
1987	0.33367566243615915
1988	0.4595950259128806
1989	0.6671868512141409
1990	0.7726054827547931
1991	0.8067179278640788
1992	0.7750361320451363
1993	0.7666034656115776
1994	0.896130161473289
1995	0.7073933457705167
1996	0.2664611635437397
1997	0.09062006241657514
1998	0.08886960660342506
1999	0.11126502230401872
2000	0.19389995477783445
2001	0.3220214435487046
2002	0.39915295821995195
2003	0.4469387337433878
2004	0.466911457263983
2005	0.4723203079765316
2006	0.6940329809034107
2007	0.928518962327078
2008	0.96565304883884
2009	1.035806600758715
2010	1.0337503952261462
2011	1.0380877023333828
2012	1.1177273622415151
2013	1.2157457948507746
2014	1.353460114004269
2015	1.4116162163038504
2016	1.601319652378337
2017	1.6853721019236787
2018	1.4881506748737874
2019	1.330044338805618
2020	1.0289400223564216
2021	0.8968137717645365
2022	0.9680323998440474
2023	0.750326881306508