user: Question: How many people ha Romanian as their mother tongue in 2006?
Columns: ['Mother Tongue', 'Population (2006)', 'Percentage (2006)', 'Population (2011)', 'Percentage (2011)']
Types: ['text', 'real', 'text', 'real', 'text']
Sample row: ['English', 8085.0, '45.22%', 7615.0, '42.41%']
SQL:

assistant: SELECT SUM("Population (2006)") FROM "Table" WHERE "Mother Tongue" = 'Romanian';