Year	annual %
1961	3.10488961566466
1962	3.09614501457842
1963	3.06596105936449
1964	3.02619520379658
1965	2.97704365495747
1966	2.8884894785914
1967	2.79168365879028
1968	2.69567396861323
1969	2.58185958159407
1970	2.48449016945708
1971	2.36433190301024
1972	2.27539861248598
1973	2.24987502569652
1974	2.21473664560107
1975	2.18515172922318
1976	2.15268736522222
1977	2.19594319499091
1978	2.26383747547542
1979	2.27641953563408
1980	2.30660801533035
1981	2.30282810071568
1982	2.28538665013336
1983	2.29825611583074
1984	2.2799770813467
1985	2.19684709234321
1986	2.13831694364723
1987	2.12330820360553
1988	2.11350051754997
1989	2.10958011736201
1990	2.10245993310484
1991	2.03800594708786
1992	1.98308677402728
1993	1.9713513727806
1994	1.94749136422042
1995	1.89336934967888
1996	1.82497516949853
1997	1.78395611076054
1998	1.73449209300479
1999	1.6742155832136
2000	1.61983140551157
2001	1.57553237214944
2002	1.53486691614177
2003	1.48113157054236
2004	1.42817053070487
2005	1.36565233876962
2006	1.29886517669187
2007	1.23996744251378
2008	1.16787354604705
2009	1.13154130595269
2010	1.12688471543895
2011	1.09358307436582
2012	1.03966499994087
2013	0.990034781454962
2014	0.947136923375947
2015	0.941994067106625
2016	1.068611890834
2017	1.51228960592288
2018	1.89558675057496
2019	1.83074694246543
2020	1.47010203160178
2021	1.14382091580962
2022	0.691481571303501
2023	0.406206101195742