I think the dates on which each movie and series takes place is like this:

Crystal Lake (1971-72)
Friday The 13th (1979)
Friday The 13th 2, 3 and 4 (1984)
New Beginning (1989)
Jason Lives (1990)
New Blood (1991-93)
JTM (1994)
JGTH (1995)
Freddy vs Jason (2002)
Jason X (2455)