Table: irb_sevens
Columns: season
rounds
champion
most_tries
player_of_the_year

Question: What are the rounds for champion New Zealand (130 points)?
SQL: SELECT AVG("rounds") FROM irb_sevens WHERE "champion" = 'new zealand (130 points)'

Question: For which season is Tim Mikkelson player of the year?
SQL: SELECT "season" FROM irb_sevens WHERE "player_of_the_year" = 'tim mikkelson'