Based on this year's Halloween and Christmas parties, there will be 80 next year.
January 6, 13, 20 and 27
February 3, 10, 17 and 24
March 3, 17, 24 and 31
April 7 and 28
May 5, 12 and 19
17 after-hour parties plus 38 Halloween and 25 Christmas parties equals.......80.