In the past 14 years, I have paid for 1/2 of one ticket. I believe that was around $0.02 / mile. Other that that, I have paid nothing for many tickets. However, it is a different story for my company and companies that schedule my services. The following is a breakdown of ff mile $$$.
1997 - $0.41
1998 - $0.398
1999 - $0.612
2000 - $0.424
2001 - $0.438
2002 - $0.402
2003 - $0.26
2004 - $0.256 (so far this year)
What a difference it is when one pays for their own tickets and when someone else does.