How many 2001 censuses are there on number 13?
CREATE TABLE table_10138926_1 (_number VARCHAR)
SELECT COUNT(2001 AS _census) FROM table_10138926_1 WHERE _number = 13
### Context: CREATE TABLE table_10138926_1 (_number VARCHAR) ### Question: How many 2001 censuses are there on number 13? ### Answer: SELECT COUNT(2001 AS _census) FROM table_10138926_1 WHERE _number = 13