Table: john_player_league_1970_2
Columns: player
county
balls
wickets
average
economy
bbi
4wi
5wi

Question: if the bbi is 4/39 what is the average
SQL: SELECT "average" FROM john_player_league_1970_2 WHERE "bbi" = '4/39'

Question: if the economy is 3.63 what is the bbi
SQL: SELECT "bbi" FROM john_player_league_1970_2 WHERE "economy" = '3.63'

Question: in the leage what was the minimum 4wi
SQL: SELECT MIN("4wi") FROM john_player_league_1970_2