Based on a comparison of 162 countries in 2013, Macao ranked the highest in balance of trade as a share of GDP with 60.9% followed by Qatar and Kuwait. On the other end of the scale was East Timor with -112%, Lesotho with -60.7% and Liberia with -57.2%.
Average balance of trade as a share of GDP reached 0.155% in 2013 in the World according to the National Statistical Office. This is 135 % more than in the previous year and -110 % less than 10 years ago.
Historically, average balance of trade as a share of GDP reached an all time high of 0.580% in 1997 and an all time low of -1.04% in 1980. The average annual growth amounted to nan % since 1960.
Data for more countries are available at Balance of Trade (As % of GDP) indicator page.