{"us":{"label":"United States","estimate":true,"population":320476833,"population_rate":0.0671180556,"rate_interval":"second","last_updated":"1425865379","components":{"birth_rate":{"increment":1,"interval":"8","unit":"seconds"},"death_rate":{"increment":1,"interval":"12","unit":"seconds"},"immigrant_rate":{"increment":1,"interval":"33","unit":"seconds"}},"date":"03\/09\/2015"}}