user: Question: What was the 2005 established population in CYO?
Columns: ['District', 'Capital City', 'Area (km²)', 'Area (sq.mi)', 'Population (2005 est)', '2-letter abbreviation', '3-letter abbreviation']
Types: ['text', 'text', 'real', 'real', 'real', 'text', 'text']
Sample row: ['Belize', 'Belize City', 4204.0, 1623.0, 87000.0, 'BZ', 'BZD']
SQL:

assistant: SELECT "Population (2005 est)" FROM "Table" WHERE "3-letter abbreviation" = 'CYO';