As far as I know, it doesn't have to (shouldn't?) be updated for the current year if it doesn't change.

From http://www.copyright.gov/title17/92chap4.html#401:

If a notice appears on the copies, it shall consist of the following three elements:

(1) the symbol © (the letter C in a circle), or the word “Copyright”, or the abbreviation “Copr.”; and

(2) the year of first publication of the work

If they haven't touched this page since 2012 (totally reasonable), I think it should be 2012.

This blog post (http://www.photoattorney.com/qa-what-year-should-i-use-for-m...) also mentions that you can use a range for when it covers multiple years of publication (like a blog).