CREATE TABLE table_72101 ("Season" CLOB, "Competition" CLOB, "Round" CLOB, "Opponents" CLOB, "1st leg" CLOB, "2nd leg" CLOB, "Aggregate" CLOB)

what is the total number of 2nd leg where aggregate is 7-2
SELECT COUNT("2nd leg") FROM table_72101 WHERE "Aggregate" = '7-2'
SELECT COUNT("2nd leg") FROM "table_72101" WHERE "Aggregate" = '7-2'