CREATE TABLE table_75812 ("Member State sorted by GDP" TEXT, "GDP in s billion of USD  ( 2012 ) " FLOAT, "GDP % of EU  ( 2012 ) " TEXT, "Annual change % of GDP  ( 2012 ) " TEXT, "GDP per capita in PPP US$  ( 2012 ) " FLOAT, "Public Debt % of GDP  ( 2013 Q1 ) " FLOAT, "Deficit  ( - ) / Surplus  ( + )  % of GDP  ( 2012 ) " TEXT, "Inflation % Annual  ( 2012 ) " FLOAT, "Unemp. % 2013 M7" FLOAT)

What is the GDP % of EU in 2012 of the country with a GDP in billions of USD in 2012 of 256.3?
SELECT "GDP % of EU (2012)" FROM table_75812 WHERE "GDP in s billion of USD (2012)" = '256.3'
SELECT "GDP % of EU (2012)" FROM "table_75812" WHERE "GDP in s billion of USD (2012)" = '256.3'