Year	% of merchandise imports
1977	54.26151673065501
1978	57.60582605161295
1979	58.388400153164675
1980	58.767872286729805
1981	58.05668172379487
1983	60.40457194387259
1985	60.712476052974985
1986	62.806165231047615
1987	64.73725983659759
1993	64.19043040222738
1994	63.14830662283121
1995	65.73434638329539
1996	63.42765251585202
1997	64.2683948190378
1999	67.88324507906145
2000	66.87486945509283
2001	65.44287701456688
2002	64.18026414063085
2003	63.6127170021503
2004	64.87714944470542
2005	65.49868707971306
2006	61.345695528515755
2007	59.34659977258514
2008	59.65428029028639
2009	59.585866744848495
2010	57.09622579537702
2012	50.25255771514525
2013	50.366101890203964
2016	60.578419091111144
2017	61.83130690212486
2018	67.48837600745509
2019	68.41130172149572
2020	64.30253498784272
2021	68.18264635045811