Year	annual %
1961	2.2005708777101334
1962	2.07649430194512
1963	1.9705593629500342
1964	1.9134371083291655
1965	1.7676532871645585
1966	1.6655587044627618
1967	1.5928204220874935
1968	1.4957626376172948
1969	1.467992726049277
1970	1.5311516221530037
1971	1.2792778935089808
1972	1.0841062892696236
1973	0.9680585891055307
1974	0.9272399823064091
1975	0.9995645031810626
1976	0.9637960808425257
1977	1.0193461526114862
1978	1.071788951131617
1979	1.1171475381993965
1980	1.0219924781202336
1981	1.187337971332688
1982	1.1588177686006214
1983	1.1194566270853115
1984	1.067786201526116
1985	1.0876907865483727
1986	1.125320220770279
1987	1.093244264398285
1988	1.1070174737561496
1989	1.140364939182744
1990	1.410256285419027
1991	1.867384398943116
1992	1.908632996571436
1993	1.8311822760499332
1994	1.7309822295661026
1995	1.6864666633733525
1996	1.6527829780073895
1997	1.6819752668148304
1998	1.63762765741403
1999	1.6129567715567326
2000	1.5120113913871336
2001	1.2133804217041788
2002	1.148418846583119
2003	1.0783603843803637
2004	1.143885300851209
2005	1.135884591134559
2006	1.177968159686514
2007	1.1630677610175635
2008	1.1561856713353484
2009	1.085290294288217
2010	1.0353448006919075
2011	0.93950541093758
2012	0.9495655083706703
2013	0.9145104135626368
2014	0.95943078191871
2015	0.9666747821802895
2016	0.958268060593122
2017	0.8717852601171909
2018	0.767437430461766
2019	0.7018677751956837
2020	1.2172994133940915
2021	0.40985441896121305
2022	0.6217554192672899
2023	0.7491643350060717