user: Question: How many broadband subscribers are there where the population is ~3,644,070?
Columns: ['Year', 'Number of Users', 'Penetration', 'Number of Broadband Subscribers', 'Broadband Penetration', 'Population', 'Data provided by']
Types: ['real', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: [2000.0, '~47,372', '1.3%', 'no data', 'no data', '~3,644,070', 'ITU']
SQL:

assistant: SELECT "Number of Broadband Subscribers" FROM "Table" WHERE "Population" = '~3,644,070';