Craft SuperTable in a Matrix, implementing variable column width

_entry.html

    <div class="module casestudy-awards">
        <div class="container">
            {% for block in entry.awards %}
                <div class="row">
                    <div class="col-sm-12">
                        <h3 class="module-title">
                            {%- if block.moduleTitle | length -%}
                                {{- block.moduleTitle -}}
                            {%- else %}Awards won{% endif -%}
                        </h3>
                    </div>
                </div>
                <div class="row">
                    {% set colCount = block.award | length %}
                    {% for column in block.award %}
                        <div class="col-sm-{% if colCount == 1 %}12{% elseif colCount == 2 %}6{% elseif colCount == 3 %}4{% endif %}">{{ column.awardTitle }}</div>
                    {% endfor %}
                </div>
            {% endfor %}
        </div>
    </div>