CREATE TABLE table_203_271 (id DECIMAL, "date" TEXT, "series" TEXT, "circuit" TEXT, "city / state" TEXT, "winner" TEXT, "team" TEXT, "car" TEXT, "report" TEXT)

how many races took place in new south wales ?
SELECT COUNT(*) FROM table_203_271 WHERE "city / state" = 'new south wales'
SELECT COUNT(*) FROM "table_203_271" WHERE "city / state" = 'new south wales'