Microsoft disclosed for the first time on Thursday the number of requests it had received from government law enforcement agencies for data on its hundreds of millions of customers around the world, joining the ranks of Google, Twitter and other Web businesses that publish so-called transparency reports.

The report, which Microsoft said it planned to update every six months, showed that law enforcement agencies in five countries — Britain, France, Germany, Turkey and the United States — accounted for 69 percent of the 70,665 requests the company received last year.

In 80 percent of requests, Microsoft provided elements of what is called noncontent data, like an account holder’s name, sex, e-mail address, I.P. address, country of residence, and dates and times of data traffic.

In 2.1 percent of requests, the company disclosed the actual content of a communication, like the subject heading of an e-mail, the contents of an e-mail or a picture stored on SkyDrive, its cloud computing service.