An estimated 12.8 million visitors (20 times the state’s population) spent $1.9 billion in 2015 (vs. $1.46 billion in 2003). An important source of revenue for businesses, non-profits, and state taxes, seasonal variations in visitor traffic are affected by everything from market and demographic trends, snowfall and water quality.
Vehicle Miles Traveled is used as an indicator of general economic activity, with an assumption that a quarter of miles are work-related. This data broadly indicates trends in spending behaviors and recreational activity levels. The 2015 VMT data represents the highest level reported since 2010.