Service industries expanded in May at the slowest pace in 13 months as orders eased, signaling tempered improvement in the biggest part of the U.S. economy.

Service industries expanded at a faster pace in January, a sign of progress in the biggest part of the economy that will help the U.S. work through a global slowdown.

Service industries expanded in December at the slowest pace in six months, indicating the biggest part of the U.S. economy cooled as the year drew to a close.

Service industries in the U.S. sustained a faster pace of expansion in October than in the first half of the year, indicating the world’s largest economy is overcoming a global slowdown.

Service providers expanded in August at the fastest pace in nine years, a sign of growing momentum in the broadest sector of the U.S. economy.

Service industries expanded in May at the fastest pace in nine months as orders picked up, indicating improving sales will help the U.S. economy strengthen.