No, I do not. A TWRA Biologist friend asks me about that as well. I tell him that I GUESS that my catches are generally about 25% (give or take) white crappie.
However that really is a complete guess. I do not take time to sort them out at the end of the day. I'm usually ready to get home so I can recharge batteries... mine and on the boat!
I just went back and reviewed this post which includes 19 pictures. Eight out of the 19 are white crappie. That's 42% white crappie. HOWEVER, proportionately a lot of the BIG ones we caught this year (the ones I would be more likely to photograph) were white crappie. However the overall numbers of standard keepers were far less... so I'll stick with my 25% (plus or minus) guess.