CREATE TABLE table_381 ("Member" TEXT, "Electorate" TEXT, "Province" TEXT, "MPs term" TEXT, "Election date" TEXT)

what's the election date where electorate is christchurch country
SELECT "Election date" FROM table_381 WHERE "Electorate" = 'Christchurch Country'
SELECT "Election date" FROM "table_381" WHERE "Electorate" = 'Christchurch Country'