More Interesting USTA League Stats - Looking at gender and NTRP level

I received feedback on the last interesting stats blog post showing some interest in seeing a chart that combines gender and level.  For those that wanted that, here it is!

This gets a lot more complicated looking, so some explanation is in order.  And you can click on the image to see a larger rendering which may be easier to read.

Each pair of columns are for men and women in the indicated section.  Each column is showing the percentage of men/women at the level indicated by color.  The total height of the column is the percentage of players within that section for that gender.  Make sense?

I'm sure lots of observations can be made.  Feel free to leave a comment with yours.