Year	annual %
1971	3.563538643484847
1972	5.285457448872677
1973	5.910877649718444
1974	0.19111969496105985
1975	0.02021200141182078
1976	4.78252724775497
1977	3.724289500592093
1978	4.705826938013843
1979	2.9935729059358778
1980	-0.01599118099528596
1981	1.950376095005609
1982	-0.17364314978908624
1983	2.618526946106229
1984	5.7379181436944435
1985	3.408205894458362
1986	3.145880208424387
1987	3.7857187593491233
1988	4.952085741643259
1989	3.1558587444305886
1990	2.5713932251990173
1991	1.2046323869485036
1992	2.750803910673042
1993	1.7657495049883067
1994	3.8671460801415805
1995	2.9953015589493788
1996	3.416726339459103
1997	3.7418532793868025
1998	3.39514173697539
1999	3.4557875030774454
2000	3.9895185046022448
2001	1.7022054538960987
2002	1.4136991388339624
2003	1.9421402763300364
2004	3.259777359626611
2005	2.6698636977397143
2006	3.0784999834069
2007	1.897086869348172
2008	-0.9001372057730777
2009	-2.2573850801277615
2010	3.255350084202618
2011	1.6088363305527764
2012	1.6232463665500632
2013	1.3860910305767362
2014	2.4935396666239313
2015	2.845558973508304
2016	1.7409552857144348
2017	2.6108452730194216
2018	2.1895189144802316
2019	2.0133030742571094
2020	-4.207228753021425
2021	5.955655330387316
2022	2.0527738099316792