Uber provided at least some data in about 85% of those cases, the company said.
Thankfully, we do have some data in this area that might be helpful.
Google provided the authorities with some data in 90% of cases.
In addition, some data in animal studies hints that Byetta may help the pancreas regrow the cells that produce insulin, a crucial process in slowing the course of diabetes.
"We need to get some data in from a variety of schools before people start to make ad hominem comments about the process and the tests," Ms. Tisch said.
Some data in the study were retracted in September when the Cleveland Clinic, which participated in the initial research, reported that its findings had resulted from laboratory contamination.
In contrast it produced some data in response to nearly 80% of more than 14,000 requests made by US courts, police and government agencies in the second six months of 2014.
Over all, Twitter said, it received 1,157 requests for data covering 1,697 users, and it turned over at least some data in 55 percent of the cases.
This typically occurs when someone gets a good idea about how to explain some data in terms of a hypothesis that mentions phenomena that have not been observed in the data itself.
Late last year, hackers obtained private e-mail messages from leading researchers at the University of East Anglia in England suggesting they were altering the presentation of some data in a way that emphasized the human influence on climate change.
Despite the market's negative reaction, some data in the G.D.P. release pointed to a recovery in 2011 and beyond, namely a strong pickup in industrial production, a sign that Ireland's exports were growing and could underpin a growth revival.
