my @data = ();
$data[0] = ({
        "name" => "joe",
        "age" => 21,
        "weight" => 150,
        "height" => "",
        "sex" => ""
    });
$data[1] = ({
        "name" => "joe",
        "age" => "",
        "weight" => "",
        "height" => "6'0",
        "sex" => ""
    });
$data[2] = ({
        "name" => "joe",
        "age" => "21",
        "weight" => "",
        "height" => "",
        "sex" => "male"
    });