The University of Massachusetts has released key findings of what it’s calling “the largest and most representative gambling survey ever conducted in the United States.”

The UMass Amherst School of Public Health and Health Sciences survey queried nearly 10k state residents on their gambling attitudes, participation and problems. The survey is part of a broader Social and Economic Impacts of Gambling in Massachusetts (SEIGMA) study that seeks to establish a baseline reference point prior to the launch of the state’s new brick-and-mortar casino operations.

The survey, which covered lotteries, sports and horserace betting, casinos, online gambling, bingo and casual wagers with friends, was conducted between September 2013 and May 2014. The UMass team plans to conduct a followup one year after the last of the state’s three new casinos has opened for business.

Nearly three-quarters (72%) of respondents had engaged in at least one form of gambling in the past year. Of these, nearly 40% said they gamble once a year, 20% gamble monthly and 15% gamble on a weekly basis. The top motivation for gambling was to win money, followed by entertainment, socializing with family or friends and supporting charitable causes.