finding the order of which checkboxes have been checked

I'm trying to get the order of which checkboxes have been checked.

<ul class="dropdown-content checkboxes">
  <li><label><input type="checkbox" />Billy</label></li>
  <li><label><input type="checkbox" />Jacob</label></li>
  <li><label><input type="checkbox" />Bob</label></li>
  <li><label><input type="checkbox" />Alexandren</label></li>
  <li><label><input type="checkbox" />Erren</label></li>
  <li><label><input type="checkbox" />Stewgart</label></li>
  <li><label><input type="checkbox" />Jillian</label></li>
  <li><label><input type="checkbox" />Other</label></li>
</ul>

I came up with this but i'm unable to get the order of when the checkboxes were checked. I'm only able to get the list of which ones are checked only.

$(":checkbox").click(function() {
    console.log($(":checked").length);
    var i = 0;
    checked = true;
    $(':checkbox').each(function() {
        if (this.checked == false) {
            i++;
            if (i === 8) {
                checked = false;
            }
        }
    });
});

How would I get the data of what order they were checked? for instance "Boxes 1, 6, 3 ,2 were checked in this order"