According to mlive.com, in the 2016 Presidential election Michigan voters submitted 76% more undervotes than they did in 2012:
87,810: Number of voters this election who cast a ballot but did not cast a vote for president. That compares to 49,840 undervotes for president in 2012.
- Michigan's 2016 presidential election by the numbers by Julie Mack 11/10/17
Yet it's hard to tell if a 76% increase in undervotes is noteworthy, without first knowing how much MI's, (or any state's), undervote numbers tend to fluctuate over successive elections.
By how much have the average state's undervotes varied over the the last 30 years of elections?
New: If the average state question is currently too difficult, I'll settle for Michigan's average undervotes over the last 30 years, (along with the data from which that average is computed).