Year	annual %
1961	4.514068528986192
1962	4.772211600437229
1963	4.803640096296619
1964	4.8274602584120725
1965	4.864661657034888
1966	4.874193193127647
1967	4.88454552434
1968	4.903099762082881
1969	4.9190068954040695
1970	5.001974512065576
1971	5.84852067906156
1972	6.652507244809602
1973	6.829702692553225
1974	6.929292514286447
1975	7.009135045389278
1976	7.061571403378958
1977	7.217251131553574
1978	7.405601015525165
1979	7.333897548135202
1980	6.3225759534646455
1981	8.530802494702494
1982	8.99303081124728
1983	8.855550007073942
1984	8.746073392779294
1985	8.52628739728555
1986	8.214911601163104
1987	6.741032663046193
1988	6.163486685810811
1989	7.10325637603645
1990	7.632108767541809
1991	3.8479567111422703
1992	3.783866103833507
1993	4.68160522896894
1994	6.743472726253296
1995	6.347474931733752
1996	4.9273378960443575
1997	4.559042437727262
1998	3.123715705386742
1999	3.038322493911916
2000	3.0669112660627005
2001	3.1264377341606737
2002	3.1823339650606055
2003	3.2058927437199776
2004	3.2203371464178177
2005	3.1949636698142903
2006	3.171947412993567
2007	3.193331416688511
2008	4.150177298268554
2009	4.265727112949306
2010	4.389515801579788
2011	4.509873373640582
2012	4.579491587069122
2013	4.625490624875873
2014	4.609763616164159
2015	4.572098210294311
2016	4.646647240288851
2017	4.606458537610699
2018	4.439014429790361
2019	4.375921305426859
2020	4.388500663481287
2021	4.3253719388489005
2022	4.218860405642368
2023	4.24665671866479