Excerpt:
On the touchy subject of implants, Playboy‘s policy seems to be don’t ask, don’t tell. We plotted each model’s bust size (chest circumference at the fullest points) and cup size (breast volume) for all years that data were available (early ’90s to now). While busts have shrunk faster than your 401(k), cup size has remained a buxom C or D. We don’t think evolution can explain this phenomenon.
Full article here.