{{#each decades as |decade| }}
<div class="interval">
    {{input type="checkbox" checked=(is-checked date decade) indeterminate=(is-indeterminate date decade) click=(action 'selectDecade' decade)}}
    <ul class="{{ decade }}">
    {{#each (range decade 10) as |year| }}
        {{ visu-chrono-year datestats=datestats year=year range=range maxCount=maxCount minCount=minCount }}
    {{/each}}
    </ul>
</div>
{{/each}}