The
MTA says that 4.3 million people ride the NYC subways every day.
The New York City subway system is one of the most efficient people transports in the entire world. The hot and dingy subway system of the 1970's has been completely renovated into a safe, convenient and comfortable mode of transportation between nearly all areas of New York City. Over 4.3 million people ride the subway system every day; over 1 billion people go through the turnstiles per year!
1 billion people per year. Over 5 years that's 5 billion riders going at least one stop.
The NY Daily news
reported on a long term sexual assaulter:
A Daily News analysis of subway crime last month revealed women reported being victims of subway perverts more than 3,000 times during a five-year period ended in July 2013.
3,000 victims out of a total of 5 billion riders (.0006 percent of total ridership).
If we assume half of the ridership is women then that's .00012 percent.