What is the percent of players in the top X that are women for different values of X? I have already found some numbers thanks to this website: http://www.ferimex.com/icc/frl.php?list=0&amp;country=0&amp;title=0&amp;sex=0&amp;year=0&amp;old=0&amp;cat=0&amp;size=9&amp;update=yes


Top 50: 0 = 0%
Top 100: 2 = 2% 
Top 200: 2 = 1%
Top 300: 3 = 1%
Top 400: 4 = 1%
Top 500: 6 = 1.2%
Top 600: 12 = 2%
Top 700: 15 = 2.14%
Top 800: 16 = 2%
Top 900: 19 = 2.11%
Top 1000: 29 = 2.9%
Top 1100: 33 = 3% 
Top 1200: 36 = 3%
Top 1300: 43 = 3.31%
Top 1400: 45 = 3.21%
Top 1500: 45 = 3%
Top 1600: 49 = 3.06%
Top 1700: 54 = 3.18%
Top 1800: 57 = 3.17%
Top 1900: 61 = 3.21%
Top 2000: 65 = 3.25%


And I plotted the graph:



It's clearly increasing.

But I couldn't go higher than top 2000. I hope that someone will be able to extend the graph for higher values (for higher values the graph should be smoother because there will be less statistical fluctuations).
What I would suggest you do which will allow you to get these statistics for yourself is to go to the FIDE ratings advanced search page. There you can choose options like:

rating 2400 - 3000

sex: both

exclude inactive: tick

and you will get the answer "2184" followed by a list of players and their details. Repeat this with "sex: female" and you will get 66 followed by the list.

Repeat this for 2300 and you get total: 5073, female: 185, so percentage is 3.65%.

For 2000 you get 1473 / 31866 = 4.62%

For 1500 you get 7167 / 100730 = 7.12% and so on.

This way you can go as far as you want and in whatever detail you want.