In the run-up to New Year’s Eve, there was a lot of speculation about whether Uber’s surge pricing would affect ridership. That means when demand goes up so does the cost of using the car-sharing service.

Uber reports that most of the trips subject to surge pricing happened between 12:30 a.m. and 2:30 a.m. on what is technically New Year’s Day.

More than 100,000 passengers were in an Uber at the stroke of midnight, and demand increased by 180 percent between 12:01 a.m. and 12:30 a.m., according to Uber.

New Yorkers took the most trips around 2 a.m. and Parisians took the most trips around 4 a.m., local time.