Common year starting on Friday has only one Friday the 13th; The only Friday the 13th in this common year occurs in August. Leap years starting on Thursday share this characteristic, but also have another one in February. This is the only year type where the "n"th "Doomsday" (this year Sunday) is not in ISO week "n"; it is in ISO week "n"-1. In the (currently used) Gregorian calendar, the fourteen types of year (seven common, seven leap) repeat in a 400-year cycle (20871 weeks). Forty-three common years per cycle or exactly 10.75% start on a Friday. The 28-year sub-cycle does only span across century
Friday the 13th (franchise) film in the series has had their musical score and soundtrack released for sale. In December 2006, IGN ranked "Friday the 13th" seventh in the top 25 film franchises. Qualifications included: the franchise must have at least three films released before December 2006; the franchises must be either a commercial or artistic success; and the franchise must have had some form of impact on popular culture. Three senior editors, the editor-in-chief, and IGN's entertainment editorial manager judged the various film franchises. In commenting on "Friday the 13th"s seventh-place ranking, the general consensus among the reviewers was that even though the