CREATE TABLE table_name_60 (transfer_fee VARCHAR2, nat VARCHAR2, since VARCHAR2, goals VARCHAR2)

What is the transfer fee for the MLI player with fewer than 63 goals in a year more recent than 2006?
SELECT transfer_fee FROM table_name_60 WHERE since = "2006" AND goals < 63 AND nat = "mli"
SELECT "transfer_fee" FROM "table_name_60" WHERE "2006" = "since" AND "goals" < 63 AND "mli" = "nat"