USTA Adult League Participation by Section 2013 thru 2018 - A few sections not declining, but most are

I wrote about the general Adult league participation trend last week, and noted the continued decline, but the trend is not the same across all of the sections.  It seemed that looking at the trend by section would make sense, so here goes.

The chart below is the largest I've made, but I didn't want to create 17 separate ones for each section, so you get it all in one.  The chart shows the participation in the Adult leagues from 2013 thru 2018.

One thing really stands out, and that is that Southern has far more participation than any other section, which makes sense given it cover so many more states than any other section.  But seeing in a chart really makes the point.

But Southern is also the section that is showing the greatest decline from over 81K to just over 71K in the 5 years this analysis covers.  But nearly every section has declined, a few exceptions being Southern Cal, up over a thousand over the period, Pacific Northwest up several hundred, but down a bit from 2017 to 2018.  Southwest was largely flat, and a few others had small declines, but most have dropped several hundred to thousands over the period.

What do you think?  Are you seeing participation trends like the above in your area?