In the NFL, 25 seasons is a long time. It's the difference between Super Bowl X and Super Bowl XXXV, along with MVPs like Fran Tarkenton and Marshall Faulk.
With that in mind, it's gives plenty of opportunity to produce a number of great rushing seasons. However, the problem in comparing a rushing performance from this past season to one in 1992 is that so much can change from season-to-season and era-to-era.
Thanks to Pro Football Reference and their approximate value (AV) metric, we can do just that. In a nutshell, AV is a single number representing a player's season so that we may compare the value of single-season performances to one another.