CREATE TABLE table_204_212 (id DECIMAL, "wager" TEXT, "winner" TEXT, "loser" TEXT, "location" TEXT, "date" TEXT, "notes" TEXT)

how many matches were held in mexico city ?
SELECT COUNT(*) FROM table_204_212 WHERE "location" = 'mexico city'
SELECT COUNT(*) FROM "table_204_212" WHERE "location" = 'mexico city'