Month Persons 2009-08-01 19452043.700000000 2009-09-01 18784015.530000000 2009-10-01 19458477.240000000 2009-11-01 18922158.500000000 2009-12-01 19672002.050000000 2010-01-01 18586298.700000000 2010-02-01 18638316.430000000 2010-03-01 18874455.470000003 2010-04-01 18971471.590000000 2010-05-01 19038633.020000000 2010-06-01 19813823.490000000 2010-07-01 19569719.980000000 2010-08-01 19867617.000000000 2010-09-01 19721980.360000003 2010-10-01 19876137.340000000 2010-11-01 19483686.689999998 2010-12-01 19464244.270000000 2011-01-01 18789913.080000000 2011-02-01 18634307.779999997 2011-03-01 19249379.040000000 2011-04-01 19105903.980000000 2011-05-01 19583141.120000000 2011-06-01 19580991.750000000