Using standard Fortran - past, present, and future

At a recent Fortran Forum, a show of hands indicated that while 20% of Fortran users are still stuck with Fortran 66 (i.e., manufacturer's products called Fortran IV), the majority have now progressed to the newer more powerful Fortran 77 standard (for which manufacturers use various names - to be sure it is Fortran 77, check the small print).