Given a year, write the shortest program that outputs how many friday the 13ths there are in that year.
Input: You may accept the year either through stdin or as an argument to your program. If a date pre-dates the Gregorian calendar your program can have undefined behaviour(likewise for any invalid input).
Output: an integer to standard out which is how many friday the 13ths are in that year.
Rules: None. Use whatever language, and whatever libraries you like
NOTE: this is different(though similar) from Next Friday the 13th which I found while checking if there's already a duiplicate
Code Golf so shortest code wins.