Year	annual %
1961	1.3154686942771008
1962	1.6676919464707396
1963	3.0257967002842463
1964	4.642426558486875
1965	5.100712936962594
1966	4.086014933073471
1967	3.1934309371261804
1968	2.6202892766024917
1969	4.023826311154082
1970	4.546195738972543
1971	5.3582178135809215
1972	6.317819214138382
1973	6.806986430696568
1974	12.168340261830224
1975	12.889722807013996
1976	7.575263114413076
1977	7.478059968255437
1978	4.423250337367307
1979	4.505241374626621
1980	4.126596969116264
1981	5.139196661323851
1982	7.570416248636263
1983	5.612850366099593
1984	5.438717242746321
1985	4.627742139480162
1986	2.7967811357781045
1987	1.684110879357405
1988	2.168989903109548
1989	4.7974573616676395
1990	2.8124037132310207
1991	2.8766244803879886
1992	3.424524559520364
1993	3.9932319227768573
1994	2.0943047756744733
1995	1.2207695800341156
1996	0.47661974091018067
1997	0.7576244101077378
1998	1.8056435009856386
1999	0.5988977828016857
2000	2.0146173871398645
2001	1.9828027208490795
2002	1.640007795197974
2003	1.8500886825035536
2004	1.9149909483114413
2005	2.0830742127538713
2006	2.264707144334025
2007	1.9317211167246882
2008	1.9088454254385425
2009	0.5331793979715513
2010	1.8920778602700778
2011	1.8072994675871996
2012	1.961119341383096
2013	1.2712581549833715
2014	0.982645554501687
2015	1.3303861283517904
2016	1.920850694950488
2017	1.8302727960121103
2018	1.5498315248537438
2019	1.7680974163174312
2020	1.599490907296115
2021	3.171993550268965
2022	5.891702979057214
2023	4.0798741065913475