DKS&A Michigan 2009 Visitor Profile - a comprehensive analysis of the travel market in the US and Michigan as of 2009, including sections on the current market, targets and positioning
MEDC Michigan Travel Economic Impact and Travel Volumes - data on travel volume and spending, tax revenue and employment, and industry ROI (through 2009)
STR Hotel Review for 2011 - US hotel industry statistics by segment, top 25 markets, and state
MDOT Travel Trends for 2011 - includes 2011 bridge crossings relative to 2010
International Visitors to the US - observed arrivals for 2000-2010 and projected arrivals for 2011-2016
UNWTO World Tourism Barometer, Jan 2012 - preliminary results for international 2011 and projections for 2012