user: Question: What is the total teams during the 2012-13 season?
Columns: ['Season', 'Teams', 'Minor Ladder Position', 'Finals Qualification', 'Final Ladder Position', 'ACL Qualification', 'ACL Placing']
Types: ['text', 'real', 'text', 'text', 'text', 'text', 'text']
Sample row: ['2005-06', 8.0, '7th', 'DNQ', '7th', 'DNQ', 'n/a']
SQL:

assistant: SELECT SUM("Teams") FROM "Table" WHERE "Season" = '2012-13';