UK surplus? U.S. surplus? Who knows, trade statisticians say

Statisticians in Britain and the United States are puzzled by a big mismatch in services trade figures between the two countries which raises questions about how much emphasis governments should put on the sector in future trade deals.The 33 billion-pound mismatch for 2016 was derived from British statistics showing the country had a trade surplus in services with the United States of 23 billion pounds while the United States reported a services surplus with Britain of around 10 billion pounds.B