Australian breasts ballooning

After reading an article by Melissa Singer I have booked myself in for an eye test – my vision must be failing as I have failed to notice this:

As a nation we are getting bigger all over, but the number of ''average-sized'' women with above average bust lines has ballooned, with the most common bra cup size increasing from a B to a DD in the past 50 years.

Then again I'm a leg man and don't really pay much attention to "fun bags" – long perfectly formed legs are much more attractive than wrap-around breasts.