A cycle is counted from the first day of 1 period to the first day of the next period. The average menstrual cycle is 28 days long. Cycles can range anywhere from 21 to 35 days in adults and from 21 to 45 days in young teens.
Report Abuse. 1  How Many Flights Per Day. 2  For the best answers, search on this site https://shorturl.im/awZV0. 3  It would be hard to calculate world figures but i found numbers for the US ranging from 27,319 to 28,537 average flights per day.  That's an interesting question I hope you'll get reasonable 1  answers. Not sure.
38.3k Views. According to the Bureau of Transportation Statistics (http://www.transtats.bts .gov/), a total of 631,939,829 passengers boarded domestic flights in the United States in the year 2010.This averages to 1.73 million passengers flying per day.This statistic counts individuals every single time that they board a plane as a different passenger. I have not found out how to obtain this information at a level for number of distinct people that travel in the United States per year.his averages to 1.73 million passengers flying per day. This statistic counts individuals every single time that they board a plane as a different passenger. I have not found out how to obtain this information at a level for number of distinct people that travel in the United States per year.