Array
(
    [2] => 587
    [3] => 1169
    [4] => 1620
    [5] => 2250
    [6] => 2807
    [7] => 3339
    [8] => 2749
    [9] => 2182
    [10] => 1630
    [11] => 1092
    [12] => 575
)