Year	annual %
1966	-6.933650074401541
1967	2.1240829002528727
1968	10.817452537588679
1969	10.709357518206787
1970	21.64219760823542
1971	-0.1340653690014335
1972	-1.132908800376896
1973	-13.272476519682257
1974	10.550330561008138
1975	5.293817406830968
1976	1.1548489800207165
1977	0.40129745406945005
1978	8.602188935552974
1979	-14.22383174822906
1980	-1.5023152124108492
1981	-8.69505721546416
1982	0.25640994147985907
1983	-3.9771327901070634
1984	-0.18028429385125833
1985	2.6055362599307443
1986	-2.8245982834682906
1987	3.625516710331425
1988	32.00916654294926
1989	8.83982979902514
1990	1.174571017100149
1991	2.230300234683284
1992	-1.9605930241539937
1993	-2.029547800000458
1994	-0.10935538287358781
1995	3.5710621070601007
1996	-1.45576236334189
1997	0.055313045551017126
1998	-5.020937826815739
1999	-0.9976076430668286
2000	0.17714284157275983
2018	3.857644610572436
2019	-1.4254461013793787
2020	-2.3423933900497786
2021	-1.8501719714380442
2022	3.951730026199442