Year	annual %
1961	2.43092971526276
1962	2.46548228623582
1963	2.48820447382066
1964	2.50302859219558
1965	2.52661215345981
1966	2.53116905817214
1967	2.54047720854671
1968	2.56350279331356
1969	2.58783211455937
1970	2.6085408055199
1971	2.5695957298204
1972	2.5858480675994
1973	2.67020421738826
1974	2.71666888614457
1975	2.75033520224086
1976	2.76409482579779
1977	2.84596560586146
1978	2.94084670854619
1979	2.96010143902929
1980	2.97327255483057
1981	2.93356416223651
1982	2.86905046469497
1983	2.96161444932462
1984	3.03725243008946
1985	2.96946228415034
1986	2.91010648259332
1987	2.84690461433257
1988	2.79273225806466
1989	2.74760428780402
1990	-12.6455331753443
1991	-13.0576707587255
1992	5.68258679338161
1993	3.83021241897833
1994	-0.355709869426709
1995	0.807199025309224
1996	2.83214999149979
1997	7.82276172516147
1998	10.1998852629619
1999	5.54645423394803
2000	3.71130059206802
2001	2.94136849764656
2002	2.61344806491648
2003	0.799708513941131
2004	1.20092557138433
2005	4.50463673233063
2006	5.62739999338956
2007	5.00498279274666
2008	4.07646036851064
2009	3.15228963928178
2010	2.89962727401251
2011	3.93153710180299
2012	3.53829805549154
2013	2.18235448876975
2014	2.05859453753694
2015	2.03541363752766
2016	2.01259665687601
2017	1.90548944068251
2018	1.91539593694733
2019	1.94236198013985
2020	2.03116860337744
2021	2.05886078022756
2022	2.08208722249815
2023	2.15837823978606