Instruct: what is the listing for 1999 when 1990 is more than 0, 2003 is 3, 2007 is more than 1 and 1996 is more than 0?
Output: SELECT SUM 1999 FROM table WHERE 1990 > 0 AND 2003 = 3 AND 2007 > 1 AND 1996 > 0