Year	annual %
1961	2.58971462502766
1962	2.75638096247026
1963	2.89284134676927
1964	2.94293267810448
1965	3.01184662945533
1966	3.07600131851588
1967	3.13061883762921
1968	3.17848609103675
1969	3.22965628611938
1970	3.2638610076405
1971	3.27246341405865
1972	3.27786465967249
1973	3.2894133902984
1974	3.29326166729264
1975	3.29760614895153
1976	3.30856489980186
1977	3.31371321030012
1978	3.31465470767433
1979	3.28443762924931
1980	3.22888129079952
1981	3.17221330874452
1982	3.11447910873238
1983	3.080064547601
1984	3.05185216084329
1985	3.00915242732183
1986	2.97334339875952
1987	2.93651926472252
1988	2.8810987695454
1989	2.82485287209837
1990	2.58173992694972
1991	1.64599614396289
1992	-3.90943185767227
1993	-4.70773534799775
1994	0.0809904678960111
1995	1.19681518857701
1996	1.87004876817793
1997	1.72843740815916
1998	1.86199682422406
1999	2.45497568951543
2000	2.80057018423756
2001	2.69277829428078
2002	2.58776329516912
2003	2.48546106253177
2004	2.39210919099831
2005	2.03035343996667
2006	1.48695338651854
2007	1.23319303054383
2008	1.18468503010311
2009	1.14473127595882
2010	1.11717717159158
2011	1.10160983275966
2012	1.08946783207717
2013	1.06812304057562
2014	1.0193598434941
2015	0.934969649654716
2016	0.868973710626164
2017	0.844692720380736
2018	0.787111572078005
2019	0.701252583573764
2020	0.655471789302584
2021	0.642586172837449
2022	0.63707753130368
2023	0.63304453326495