Year	% of total merchandise exports
1960	0.8167761211615294
1961	0.8447762260048363
1962	0.8171814580574563
1963	0.8712916934609677
1964	1.1635036192274364
1965	1.2003843504930618
1966	1.0230495297391147
1967	0.9421923400707246
1968	1.0018680563753435
1969	1.0247519733627946
1970	0.9391301494892198
1971	0.8756617558361204
1972	0.924993366095051
1973	0.9362243313003097
1974	0.9161329819142144
1975	0.8190710014606938
1976	0.7656990555447276
1977	0.8094715526703946
1978	0.7763394041417401
1979	0.7994680230650704
1980	0.8292972790008879
1981	1.026862387823024
1982	1.0142937748283263
1983	0.9199844200015126
1984	0.9599897572821542
1985	0.8870051172561823
1986	0.7654502958465369
1987	0.764215016322868
1988	0.7569277270239033
1989	0.8315876764634963
1990	0.8415197681941754
1991	0.9114106237099064
1992	1.2274002007576277
1993	1.4370378036136413
1994	2.0498847883466365
1995	2.194226641741746
1996	2.261708167540679
1997	2.3226813800084867
1998	2.1413544937184783
1999	1.8842901243271752
2000	2.247727066413096
2001	2.2623518476111886
2002	2.4692009899246803
2003	2.6277316322965727
2004	2.7492272097542307
2005	3.007839972999634
2006	3.1663604790943616
2007	3.6317961412605513
2008	4.005517313012841
2009	3.8715731345686537
2010	4.196045017640478
2011	4.41888918374447
2012	4.825742445105062
2013	4.951912636924208
2014	4.86997384622063
2015	4.905815125431931
2016	4.83280855792186
2017	5.110554080886557
2018	5.163783384805169
2019	5.4778397396376945
2020	5.752302234466438