Year	annual %
1961	2.47894582947835
1962	2.52204443631977
1963	2.53683035987564
1964	2.55088098289245
1965	2.56229906211909
1966	1.82443506019644
1967	1.02726231911114
1968	0.942984879219576
1969	1.45395327431462
1970	1.95679629086962
1971	1.89361709678742
1972	1.81313742136087
1973	1.65056490850733
1974	0.584118615834758
1975	-0.457132377600038
1976	-0.603382414976969
1977	-0.692159430344336
1978	-0.718842898024335
1979	0.519960916517981
1980	1.72160685618686
1981	1.73126389825974
1982	1.76533594799035
1983	1.80023430089355
1984	1.88018732052436
1985	2.07510891763956
1986	2.30869530652262
1987	2.43116769492361
1988	2.44882528928799
1989	2.42025099312841
1990	2.27258030207318
1991	1.96136408217237
1992	1.66850673243696
1993	1.51855855176381
1994	1.46968263408892
1995	1.50486626103987
1996	1.64445959258351
1997	1.76622995152552
1998	1.76005201794657
1999	1.71471727613839
2000	1.74549473198221
2001	1.90129335529483
2002	2.04346451592179
2003	2.03754196746088
2004	2.01764084838712
2005	1.99607425625382
2006	1.93602923599118
2007	1.89533635203291
2008	1.9110717364553
2009	1.93374349375449
2010	1.86835722052213
2011	1.72220205807577
2012	1.57753769269312
2013	1.50539234360214
2014	1.46654343733585
2015	1.48648352823644
2016	1.53561388437723
2017	1.54812092405828
2018	1.56542354171621
2019	1.60651238884126
2020	1.77265475198411
2021	1.88854075847608
2022	1.81315663594675
2023	1.72470818693557