A new study finds international tourism to the U.S. has dropped in the Donald Trump era.

America's share of international tourism saw a 16 percent decline in March when compared to the same month last year, according a data analysis released on Wednesday by Foursquare, a technology company with a focus on location intelligence.

The decline dates to October 2016, one month before the U.S. presidential election that pitted Republican President Donald Trump against Democratic challenger and former U.S. Secretary of State Hillary Clinton, according to the study. The decline has been steady with leisure tourism-related traffic to the U.S. falling an average of 11 percent between October and March, compared to the same period a year before.

Conversely, Foursquare analysts found tourism in the rest of the world increased 6 percent year-over-year during that same period.

While data collection and analysis is still in its relatively early stages, the reported drop could result in potentially long-term consequences for U.S. shops, restaurants and attractions, according to the study.

"Currently, there is no sign of recovery in the data," according to the release posted by Foursquare CEO Jeff Glueck.

The dip in tourism could mean an additional 1 to 2 percent year-over-year sales hit to an already unstable American retail market, according to the findings. The data paints an even grimmer picture for hotels, which receive about 15 percent of their visits from international visitors.

The study suggests that foreign tourists may be skipping the U.S. on the international tourism circuit because of "heated rhetoric" during the 2016 presidential election, and foreign perception of an unwelcoming or less appealing America under President Donald Trump's administration.

"The downturn in tourism came months before the new President came into office, and before changes to visa procedures, restrictions on travel from certain Muslim countries, the ban on certain electronics during flights from select countries and more," the Foursquare analysis suggests.

The suggestion of a global distaste for Trump and America's presidential politics is nothing new.

A poll conducted for the 2017 U.S. News Best Countries Rankings found that more than 70 percent of survey respondents lost respect for U.S. leadership as a result of the toxic nature of the U.S. election. And, if the election had been global, about 60 percent of people would have backed Hillary Clinton, according to a survey of more than 21,000 people from 36 countries in all regions of the world.