if (this_year.length) {
    var circ_count = 0;
    if (this_year[1]) {
        circ_count = (Number(this_year[0].count()) + Number(this_year[1].count()));
    } else if (Number(this_year[0].count())) {
        circ_count = Number(this_year[0].count());
    }
    return circ_count;
}