I looked up these studies as these numbers didn't seem and I think there's some bias in the way they were done. These are based off of bra sizes sold, rather th

I looked up these studies as these numbers didn't seem and I think there's some bias in the way they were done. These are based off of bra sizes sold, rather than actual breast size. There are a number of reasons why that would bias the numbers towards a larger size. Some studies that focus on self assessments rather than bras sold seems to target the average for the US at a C cup.