Here is the data as reported by Garmin. This is all riding, not just commutes. However, I only had 8 non-commute rides totaling 237 miles. The year started off slow due to some weather and family medical issues, but I got a lot of miles in anyway. I bought a new Cannondale Synapse in late September which I now use for all rides. It takes some special planning to make your average elevation match the number of activities, but I managed.

Count: 426 Activities
Distance: 5,593.95 mi
Time: 356:30:32 (h:m:s)
Elev Gain: 180,920 ft
Avg Speed: 15.7 mph
Calories: 304,603 C
Avg Dist: 13.13 mi
Avg Elev: 426 ft

I'm going to aim for 6,000 commuting miles for 2017. That is an average of about 115 miles per week for 52 weeks. I usually have more than that, but have to average in days off, holidays, etc.