Array
(
    [0] =>
    [1] =>
    [2] =>
    [3] => Array
        (
            [key] => _bar_2011_class
            [value] => Silver
            [compare] => =
        )

    [4] => Array
        (
            [key] => _bar_2012_class
            [value] => Silver
            [compare] => =
        )

    [5] =>
    [6] =>
    [7] =>
    [8] =>
)