$(".copy19").each(function() {
    // Like this:
    var statementid = $(this).data('statementid');
    var total = $(this).data('total');
    var toggle = $(this).data('toggle');
    var target = $(this).data('target');

    // or like this..

    var allData = $(this)[0].dataset;
    /* value of allData is object with attributes:
    allData = {
        statementid: "14",
        total: "98078",
        toggle: "modal",
        target: "#editmodal"
    }
    */
});