GENEVA: The World Trade Organization has called on the G-20 leading economies to begin removing trade barriers thrown up since the 2008 global economic crisis to allow international trade to resume the strong growth it saw at the start of the century.

In its latest report on the problem, the 160-nation body said that of the 1,244 trade-restrictive measures G-20 members had introduced over the past six years, 962 remained in force despite a pickup in the world economy.

In addition, the report said, G-20 countries were still introducing new measures limiting trade — at the rate of 18 a month over the past year — pushing the total in force up by 12 percent since November 2013.

Restrictive trade measures can include special tariffs and quotas on goods, but also administrative actions — dubbed behind-the-border measures in trade jargon — like domestic regulations or subsidies to national producers.

Export restrictions can also be used, but the WTO said far fewer of those had been employed by the G-20 since 2008.

“Continuing uncertainties in the global economy underline the need for G-20 economies to show restraint in the imposition of new measures and to effectively eliminate existing ones,” the WTO report declared.

The G-20 states account for 80 percent of world trade.