Table schema:
CREATE TABLE table_name_18 (ifop_5_11_09 VARCHAR, ifop_1_9_09 VARCHAR)

Question: Name the lfop for 5/11/09 with lfop 1/9/09 of 5%
SQL: SELECT ifop_5_11_09 FROM table_name_18 WHERE ifop_1_9_09 = "5%"