Year	annual %
1961	3.29449076136696
1962	3.17712045621933
1963	3.077881225698186
1964	3.0037934978303187
1965	2.9457035194206895
1966	2.850875293831961
1967	2.7686965408352067
1968	2.719467950101998
1969	2.655315810185552
1970	2.594006163563476
1971	2.5234131089503844
1972	2.4498648673059455
1973	2.4060157756743146
1974	2.386136915465408
1975	2.35871857559619
1976	2.2995115614444672
1977	2.2509024662603574
1978	2.233936853664235
1979	2.1797272615302044
1980	2.1302007163590693
1981	2.1086034415678867
1982	1.9948059134294858
1983	1.5836533763481837
1984	1.581080441623332
1985	1.6197140218113062
1986	1.6729422536847487
1987	1.7289649799163591
1988	1.7598822531756801
1989	1.7695521613731466
1990	1.7725845464620447
1991	1.7809652612330744
1992	1.8105730273141898
1993	1.952220375407892
1994	1.8941437830546644
1995	1.8216419585805252
1996	1.741822962858389
1997	1.6831322147600514
1998	1.6152909072599
1999	1.5424515301149915
2000	1.4923628515748826
2001	1.451668792838174
2002	1.3689076320046025
2003	1.116009888878488
2004	1.0658853230209209
2005	1.044364784475451
2006	1.0477622234186588
2007	1.0473556459946547
2008	1.0687163392294496
2009	1.093618177487704
2010	1.074513723487005
2011	1.0579515819749454
2012	1.0400310872920628
2013	1.0303272143023638
2014	1.072127883702754
2015	1.0946913455067098
2016	1.2600105421324543
2017	1.6398068351751351
2018	1.8805102183161984
2019	1.8815700243446243
2020	1.456438122532228
2021	1.0968830132906788
2022	0.6736388850289027
2023	0.24549692659784433