Year	annual %
1961	1.53778087122315
1962	1.63618589344618
1963	1.71201707796946
1964	1.7859103461118
1965	1.85283736450976
1966	1.91151239135573
1967	1.95649965913181
1968	2.00109132393424
1969	2.04524608720831
1970	2.08131385407574
1971	2.12507571507998
1972	2.17876668137864
1973	2.22359903726583
1974	2.2638397835609
1975	2.31828476391102
1976	2.38717632124606
1977	2.45845597871757
1978	2.51908632743707
1979	2.59107565157672
1980	2.68428833887148
1981	2.76861331698126
1982	2.82201440633235
1983	2.848290465701
1984	2.87201786127231
1985	2.903623876325
1986	2.93925896215463
1987	2.97429905037554
1988	3.00087294234367
1989	3.0182988908611
1990	3.0406276980036
1991	3.06219746377698
1992	3.06478636575957
1993	4.45082260643724
1994	3.73596221432167
1995	2.05718160489378
1996	2.56902674974726
1997	2.90970663666371
1998	3.04015123022948
1999	3.05728567373544
2000	3.03845662138601
2001	3.0124309700982
2002	3.00138127284262
2003	3.01427811282378
2004	3.02645705105477
2005	3.177348170646
2006	3.05982347255495
2007	2.87555724136521
2008	2.94774231330122
2009	2.94335369072878
2010	2.93492666293192
2011	2.92811115740547
2012	2.91501212217311
2013	2.89992060914312
2014	2.92622897984691
2015	2.95124912266827
2016	2.94982814392549
2017	2.94632156118807
2018	2.92239218681089
2019	2.88707408493347
2020	2.82913811282206
2021	2.75970517933377
2022	2.70204108933956
2023	2.66008514236957