private function normalizeTagCounts( &$tagsArray, $tagCounts )
    {
        $maxFontSize = 200;
        $minFontSize = 100;

        $maxCount = max( $tagCounts );
        $minCount = min( $tagCounts );

        $spread = $maxCount - $minCount;
        if ( $spread == 0 )
            $spread = 1;

        $step = ( $maxFontSize - $minFontSize ) / ( $spread );

        foreach ( $tagsArray as $index => $tagItem )
        {
            $tagsArray[$index]['font_size'] = $minFontSize + ( ( $tagItem['count'] - $minCount ) * $step );
        }
    }