Do you know how many have been performed in Europe, by any chance?
I got that number (40,000,000) from a talk show host and got the below stats from abortionfacts.com.
Reported number of legal induced abortions, abortion ratios, abortion rates, and characteristics of women who obtained legal induced abortions -- United States, selected years, 1976-1995.
1976=988,267
1980=1,297,606
1985=1,328,570
1990=1,429,577
1991=1,388,937
1992=1,359,145
1993=1,330,414
1994=1,267,415
1995=1,210,883
As you can see, it wouldn't take long at those rates to accumulate 40 mil ;(