20 games is pretty good and it looks like 19 this season. And 22 games in 2013, 20 in 2012, 21 in 2011. Really looks like 2014/2015 were bad years.
http://www.footywire.com/afl/footy/pc-kangaroos--daniel-wells
Allgood you are right. Played a few seasons over 20. Just checked footy wire