BMI of Body Builders

In looking for more information about the BMI of bodybuilders, I found a great site: http://www.true-natural-bodybuilding.com/bmi-bodybuilders.html created by Jos TN of True-Natural-Bodybuilding.com.  Jos has done a great deal of work tracking the history of body builders since the 1950's.  I highly recommend that you visit his website for more information.

I would like to point out that Jos charted the BMI of body builders over time and there is an interesting trend.  Take a look and make your own conclusion.

 
Notice the trend?  The BMI of body builders has increased substantially.  Jay Cultler, four time winner of IPBB Mr. Olympia, has a BMI of 40.5 at a weight of 273.  http://www.jaycutler.com/bio.php   Of course, Jay has enormous muscles which account for the weight.  But I thought the trend of all body builders over time was very interesting.  Jos has tracked many of the past competitors to create the chart.

What do you think?