[% USE MyPlugin;
   classifications = MyPlugin.classifications( data ); 
%]

[% FOREACH year = classifications %]
    <tr><td colspan=x>Year [% year.no %]</td></tr>

    [% FOREACH class = year.classes %]
        <tr><td>spacer</td><td colspan=x-1>Class [% class %]</td></tr>

        [% FOREACH sub_class = class.sub_classes %]
            <tr><td colspan=2>spacer</td><td colspan=x-2>Sub-Class [% sub_class %]</td></tr>
            <tr>

            [% FOREACH element = sub_class.elements %]
                <td>[% element %]</td>

            [% END %]
        [% END %]
    [% END %]
[% END %]

##</code><code>##

FOREACH element IN data.$year.$class.$sub-class.keys.sort