Year	annual %
1961	4.8715301729131
1962	4.94094921312934
1963	4.89315352999861
1964	4.52948209138413
1965	4.27658474295067
1966	4.37248046055418
1967	4.44244667126052
1968	4.48642066264196
1969	4.31112202262293
1970	3.62896980047581
1971	2.91908812104742
1972	2.54071308580057
1973	2.28988121329776
1974	2.1486529207952
1975	2.05888448144629
1976	2.06636647562529
1977	2.13050806157464
1978	2.10652836939085
1979	2.0302601870252
1980	1.95232498288631
1981	1.8614332212288
1982	1.83473839420611
1983	1.8811766379094
1984	1.9173714863649
1985	1.95817803162184
1986	1.9604484219087
1987	1.90123849641411
1988	1.87344406197621
1989	1.91698918072196
1990	1.93451419718874
1991	1.96773716094241
1992	2.12003331061141
1993	2.17184408349791
1994	2.00398006965598
1995	1.87251385991699
1996	1.77973785406505
1997	1.70316779551373
1998	1.6711575054798
1999	1.53353013936073
2000	1.46976235766802
2001	1.40904200942925
2002	1.31883025634015
2003	1.334756883574
2004	1.34953389082619
2005	1.36492139898865
2006	1.38766595682613
2007	1.40838277430791
2008	1.42383464201547
2009	1.43998810307513
2010	1.40695589315095
2011	1.2454535327817
2012	1.08183699838334
2013	0.934994065798907
2014	0.898582547265484
2015	0.912227428271637
2016	0.831528122187361
2017	0.765793758966215
2018	0.720668948364001
2019	0.657441084996389
2020	0.471994444906908
2021	0.352416997336031
2022	0.508137884368941
2023	0.641620859891635