Year	annual %
1961	1.88458780578972
1962	2.04408394242155
1963	2.09438746839512
1964	2.11120573373711
1965	2.15641391668825
1966	2.17559794471727
1967	2.18449428644475
1968	2.21535326084059
1969	2.2445518551773
1970	2.33023881561654
1971	2.47995546140434
1972	2.71924942177481
1973	2.92591266854448
1974	3.02867148289357
1975	3.13519227433367
1976	3.19936964500803
1977	3.37930042928331
1978	3.57828569726685
1979	3.53703243326579
1980	2.53540519944491
1981	1.96442431365159
1982	2.22431867825591
1983	2.17336055590412
1984	2.13834744183658
1985	2.0222077456685
1986	1.7955405311246
1987	0.425097231054051
1988	-0.0618866974737114
1989	1.00469368529753
1990	1.63585539230579
1991	1.91868540736041
1992	1.86801747831435
1993	2.7791184726152
1994	4.85425094996811
1995	4.47146493859959
1996	3.06090157864062
1997	2.71276561444166
1998	2.40090451378223
1999	2.42092868728063
2000	2.45330550582502
2001	2.51316804647212
2002	2.56940314170631
2003	2.59669251607104
2004	2.6114744795382
2005	2.5897761215382
2006	2.5637800990406
2007	2.59213192117964
2008	2.62064294405699
2009	2.66980274555
2010	2.79982093572927
2011	2.93267756135951
2012	3.01461029926612
2013	3.07273916417179
2014	3.0689338689503
2015	3.04301971715626
2016	3.12915549916881
2017	3.1031851393148
2018	2.94688715052533
2019	2.88656653514774
2020	2.90481965930954
2021	2.84211234895462
2022	2.7441930613512
2023	2.77535206169073