I was defending Gost by noting that, even in a year many consider to have been a bad one, he was still a middle of the pack kicker. However, since you couldn't just accept the obvious, here you go.
Gost FG% in recent years
2013: 92.7 (#7 overall)
2014: 94.6 (#3 overall, and realistically #2, since Hartley slots #1 with just 3 FG attempts)
2015: 91.7 (#6 overall)
2016: 84.4 (#18 overall)
Gost career FG%
87.1
In terms of where it fit for a season in his career, it was #7 of 11. So, yeah, it was a down year for him in terms of FG%, and it was obviously not a great year in terms of XP%, given that it was his career worst, and the first year where he's even had a miss since 2006.
In the league, he was 18th in FG% and 19th in XP%, this past season, both of which are obviously middle of the pack.
NFL Stats: by Player Position
Anything else, Ken?