Table schema:
CREATE TABLE table_1939405_2 (_percentage_2001 VARCHAR, _percentage_2011 VARCHAR, province VARCHAR)

Question: What's the percentage in 2001 in Manitoba where the percentage in 2011 is 0.8%?
SQL: SELECT _percentage_2001 FROM table_1939405_2 WHERE _percentage_2011 = "0.8%" AND province = "Manitoba"