75%

This is an interesting article. In many sports, performances have demonstrably improved over the past 50 years - faster speeds, higher jumps, heavier weights, etc.

But the percentage of free throws made in college and pro basketball has remained static - 69% in division one college hoops, and 75% in the NBA and the WNBA.

Why? Dunno. But another interesting tidbit - players shoot about 10% points higher in practice than in a game.