Array
(
    [0] => Array
        (
            [year] => 2018
            [month] => 8
            [rank] => 2
        )

    [1] => Array
        (
            [year] => 2018
            [month] => 8
            [rank] => 1
        )

    [2] => Array
        (
            [year] => 2018
            [month] => 7
            [rank] => 2
        )

    [3] => Array
        (
            [year] => 2018
            [month] => 5
            [rank] => 3
        )

    [4] => Array
        (
            [year] => 2018
            [month] => 2
            [rank] => 4
        )

    [5] => Array
        (
            [year] => 2018
            [month] => 1
            [rank] => 2
        )

    [6] => Array
        (
            [year] => 2017
            [month] => 10
            [rank] => 5
        )

    [7] => Array
        (
            [year] => 2017
            [month] => 10
            [rank] => 3
        )

    [8] => Array
        (
            [year] => 2017
            [month] => 8
            [rank] => 2
        )

    [9] => Array
        (
            [year] => 2016
            [month] => 12
            [rank] => 2
        )

    [10] => Array
        (
            [year] => 2016
            [month] => 8
            [rank] => 2
        )

)