How many leap years from Sept 1954 to Sept 2014?

As of 2015, there have been 17 leap years since 1945. They were 1948, 1952, 1956, 1960, 1964, 1968, 1972, 1976, 1980, 1984, 1988, 1992, 1996, 2000, 2004, 2008 and 2012. The next one will be 2016.