CREATE TABLE table_62167 ("Party" TEXT, "Name in English" TEXT, "City" TEXT, "Province" TEXT, "Date of registration" TEXT)

On what date was the Canarian Workers Socialist Union registered?
SELECT "Date of registration" FROM table_62167 WHERE "Name in English" = 'canarian workers socialist union'
SELECT "Date of registration" FROM "table_62167" WHERE "Name in English" = 'canarian workers socialist union'