Mine

Array
(
    [0] => Array
        (
            [0] => 8.62
            [1] => 1.62
        )

    [1] => Array
        (
            [0] => 11.42
            [1] => 4.42
        )

    [2] => Array
        (
            [0] => 18.56
            [1] => 11.56
        )

)