Year	annual %
1961	1.160601262236895
1962	1.0896325404911664
1963	1.343764188506654
1964	1.505301051793424
1965	2.011727718670869
1966	3.771318549529454
1967	4.713072544273288
1968	5.163480792643767
1969	8.925372793853654
1970	6.1453456735397225
1971	4.582551580024145
1972	6.786658893773364
1973	5.551023480162215
1974	13.232706970782601
1975	10.65637827357098
1976	2.3896652707923636
1977	1.7287030266274144
1978	2.2478837849965885
1979	8.554096535264378
1980	10.006865620158976
1981	17.688327705272442
1982	3.6950075393793895
1983	5.976967023622649
1984	3.1714354696742504
1985	8.460727142159058
1986	4.660387029452707
1987	6.586347652214172
1988	1.4843106435970412
1989	1.8131713357610693
1990	5.0737110468758
1991	2.5565398863304836
1992	3.9055654365796926
1993	-0.8519837478627608
1994	2.1833665779464155
1995	0.8024353372900492
1996	0.9842436407731441
1997	73.22947023730785
1998	3.0489213274769185
1999	4.950938924430332
2000	0.9227074252773804
2001	0.35315070456091746
2002	3.9604743250220054
2003	1.154879054278041
2004	1.1949975911647641
2005	5.056008398492537
2006	0.8281945074266588
2007	2.9479658117552106
2008	1.4886106880551893
2009	-1.0363803139799614
2010	-0.3925655656247926
2011	-0.8586053227844985
2012	3.3564966268654786
2013	-0.1703448865247026
2014	3.648171363344005
2015	5.308932146295774
2016	1.6044897557329563
2017	1.3483104202953768
2018	0.45617083241312173
2019	4.59340787218045
2020	-2.6348030197491
2021	-1.0718374466774492
2022	4.30104615816353
2023	6.344420144793418