CREATE TABLE table_203_54 (id DECIMAL, "selected\ latin american\ countries" TEXT, "internl.\ tourism\ arrivals\ 2010\ ( x 1000 ) " DECIMAL, "internl.\ tourism\ receipts.\ 2010\ ( usd\ ( x1000 ) " DECIMAL, "average\ receipt\ per visitor\ 2009\ ( usd/turista ) " DECIMAL, "tourist\ arrivals\ per\ 1000 inhab\ ( estimated ) \ 2007" DECIMAL, "receipts\ per\ capita\ 2005\ usd" DECIMAL, "revenues\ as %\ exports of\ goods and\ services\ 2003" DECIMAL, "tourism\ income\ %\ gdp\ 2003" DECIMAL, "% direct and\ indirect\ employment\ in tourism\ 2005" DECIMAL, "world\ ranking\ tourism\ competitiv.\ ttci\ 2011" DECIMAL, "2011\ ttci\ index" DECIMAL)

tourism income in latin american countries in 2003 was at most what percentage of gdp ?
SELECT "tourism\nincome\n%\ngdp\n2003" FROM table_203_54 ORDER BY "tourism\nincome\n%\ngdp\n2003" DESC LIMIT 1
SELECT "tourism\nincome\n%\ngdp\n2003" FROM "table_203_54" ORDER BY "tourism\nincome\n%\ngdp\n2003" DESC NULLS LAST LIMIT 1