How well-known are these all-time great sports figures?

[Bored5000]

There was an interesting post in the "Charleston vs. Clemente" thread that got me thinking. I am a huge history nerd, not just sports history, but history in general. I am curious to see some thoughts on what percentage of the general population posters on here believe are familiar with various old timey athletes. Most of the names I have included are baseball players, but I have thrown in a couple other names, since they have iconic cards in their respective sport.

I have included my personal thoughts for what percentage of the general population is familiar with a particular athlete, but I fully admit that some of my opinions could be way off. I am interested in other people's opinions. A few of the people I listed are still alive, so I realize that may skew the percentage a bit compared to someone who has been dead for 50-75 years.

Babe Ruth 99%
Muhammad Ali 99%
Jackie Robinson 99%
Pele 99%
Lou Gehrig 95%
Mickey Mantle 95%
Joe Frazier 80%
Roberto Clemente 80%
Joe DiMaggio 75%
Ty Cobb 75%
Shoeless Joe Jackson 60%
Wilt Chamberlain 50%
Bill Russell 50%
Jack Dempsey 30%
Joe Louis 30%
Rocky Marciano 30%
Jim Thorpe 30%
Jack Johnson 25%
A.J. Foyt 25%
Richard Petty 25%
Honus Wagner 15%
Satchel Paige 15%
George Mikan 10%
Rogers Hornsby 3%
Christy Mathewson 3%
Walter Johnson 3%
Bobby Jones 2%
Bronko Nagurski 2%
Josh Gibson 2%
Georges Vezina 1%