Array
(
    [0] => USA
    [1] => Canada
)
Array
(
    [14] => AZ
    [0] => CA
    [4] => CO
    [10] => MN
    [7] => MT
    [19] => NM
    [2] => NY
    [16] => ON
    [1] => TX
    [18] => VA
    [9] => WA
)