2013: 66
2014: 64
2015: 65
2016: 49
2017: 66
Even if you want to remove 2016 as an outlier, the average is still only 65, and you had not a single class below 66.
Then 2018 comes along and you're 12 spots down, the lowest ranking ever. Then 2019 comes along and you're down another 5 spots, your new record low. You went from mid 60s to 80. It's a significant change, and it wasn't a 1-year blip because of small classes. It's a 2-year trend right now, and you had 20 commits this year and 25 last year.