SCHEMA:
CREATE TABLE table_1598533_8 (annual_change__percentage_of_gdp__2012_ VARCHAR, gdp__percentage_of_eu__2012_ VARCHAR)
USER:
What is the annual change of GDP with a 20.5% GDP of EU in 2012?

QUERY:
SELECT annual_change__percentage_of_gdp__2012_ FROM table_1598533_8 WHERE gdp__percentage_of_eu__2012_ = "20.5%"