Mine still have the pins attached so it's easy to tell what year they are from, but I don't have as much variety as you do. The 2008 lanyard is lighter weight, black on both sides with beige lettering. My 2009 and 2011 lanyards are like your last photo - black and beige. 2013 and 2014 are almost the same except the lettering seems to have a slight olive green tint to it, but it's only slightly different than the beige from previous years. I pretty much have to hold them side by side to tell the difference. I don't have blue and teal, so probably not much help, except to eliminate some years.