I’m usually in skirts and tops more so than dresses. I can mix and match tops of different sleeve lengths (or sleeveless) and different degrees of warmth with different skirts to make the skirts more seasonable. Sure, some are less apt to change of seasons, but I can take a summer skirt and wear it with a tank top, sleeveless top, short sleeve top, or 3/4 length sleeve top. I can also change the top for different color combinations and therefore different looks.
Most spring/autumn skirts can be worn on cooler summer days almost to winter by changing the top as well.
I do have a few dresses, but my skirts outnumber them 3 or 4 to 1.
Your results of about 60% dresses/40% skirts seems to match with the poll I put up 8 months ago. https://www.crossdresserheaven.com/forums/topic/do-you-prefer-skirts-and-tops-or-dresses/