Historic data 
Array
(
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        (
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            [1] => 0
            [2] => 53
            [3] => 20100724
        )

    [1] => Array
        (
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            [1] => 0
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            [3] => 20100725
        )

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        (
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            [1] => 0
            [2] => 55
            [3] => 20100726
        )

    [3] => Array
        (
            [0] => 0
            [1] => 29
            [2] => 71
            [3] => 20100727
        )

    [4] => Array
        (
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            [1] => 29
            [2] => 71
            [3] => 20100728
        )

    [5] => Array
        (
            [0] => 38
            [1] => 25
            [2] => 38
            [3] => 20100730
        )

)