A. Two Internet surveys were conducted for this FAQ. A survey of non-emetophobics found that the average person reported vomiting 3.79 times in the past year, although the median was only once. The average person said they vomit 1.28 times in a typical year. The median person most recently vomited five months earlier. When we divide their estimated lifetime episodes of vomiting by their age, we find that the median person vomits .7 times per year, or once every 17 months. The average is much higher, raised by a few prolific vomiters to 1.9 times per year, or once every 6.3 months. Another survey found that emetophobics vomit almost never, with the median emetophobic having most recently vomited 12 1/2 years ago. (Among non-emetophobics, only 8 percent can claim 10 years since their last vomit.) You can learn more about emetophobics and their experience with vomiting here.