Year	% of total merchandise exports
1960	2.9827946615211447
1961	1.7764280068228149
1962	1.7685699848408287
1963	2.052690542445159
1964	1.8913121201287093
1965	2.2010485821416395
1966	2.1533336041929063
1967	1.5700324331559108
1968	1.573412604090913
1969	1.3941533092432954
1970	2.1165907454022213
1971	2.170277703389146
1972	1.9206906460037916
1973	2.2591900827526987
1974	2.150225144807412
1975	2.7650878675859074
1976	2.2312161605662064
1977	2.1025826005954986
1978	2.0453559158338206
1979	2.3073078882094715
1980	2.5119644973182025
1981	2.51953274685937
1982	2.6617589714565413
1983	2.5841152937890777
1984	2.375006354345283
1985	1.9875107706642132
1986	1.2317697278571074
1987	1.6414797818806621
1988	2.242142193804756
1989	2.311578774450344
1990	2.1730048771106274
1991	2.469565059755282
1992	2.806156897027587
1993	3.143820341680006
1994	3.2605793630939752
1995	4.039825544845354
1996	4.403204141443103
1997	5.122622265289914
1998	4.5790700766658485
1999	5.662490656730909
2000	11.719109903283174
2001	11.326900504251405
2002	10.926484198448081
2003	11.876981701974906
2004	11.95263907644313
2005	12.62594386805311
2006	12.734696008542171
2007	11.757823983409054
2008	12.169547987454322
2009	11.842673908836892
2010	12.353758676795813
2011	14.770137739505252
2012	15.04931245871503
2013	15.765815899817584
2014	16.465078431665784
2015	15.939590392934603
2016	14.879001310648615
2017	14.98227184098174
2018	16.676072858751635
2019	17.331180341189565
2020	16.734260978854373