Fees paid to Bitcoin miners by year

If the Bitcoin network was a payments startup this chart would track its annual sales.  

Total fees paid to miners by year:
2010: $3.8k
2011: $33k
2012: $66k
2013: $2.2m
2014: $2.5m
2015: $2.3m
2016: $13.6m
2017: $555m
2018: $296m