Final Michigan TV Ratings – Ratings Up, Share Down, close to same as 2004:

Street & Smith’s Sports Business Daily says the June 19 Batman Begins 400 at Michigan International Speedway drew a 4.76 rating and an audience share of 12, according to data from Nielsen Media Research. The numbers for last year’s race were not immediately available.(NASCAR Scene Daily Newsletter)
2004: from my 2004 TV Ratings Page [info came from these two sources too] – Final Nielsen Media Research numbers show Fox’s broadcast of last Sunday’s DHL 400 at Michigan International Speedway drew a 4.5 rating and 13 share, down 16.7% from 2003’s 5.4/16.(6-24-2005)