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Exports plus Imports divided by GDP is the total trade as a percentage of GDP.
A = Annual, SA = Semiannual, Q = Quarterly, M
= Monthly, BW = Bi-Weekly, W =
Weekly, D = Daily, NA = Not Applicable
SA = Seasonally Adjusted, NSA
= Not Seasonally Adjusted, SAAR = Seasonally Adjusted
Annual Rate, SSA = Smoothed Seasonally Adjusted, NA = Not Applicable