Service sector employers in the U.S. plan a net 42.1 percent increase in employment this month compared to a net increase of just 24.7 percent in the same month a year ago, according to the leading indicators of national employment report released today by the Society for Human Resource Management.

This will be the busiest March for adding staff since 2010, according to the report.

The net increase is calculated by taking the percent of service sector employers saying that they plan to add staff, 50.7 percent, and subtracting the percent who plan to cut staff, 8.6 percent. The total comes to 42.1 percent.

Among manufacturers, a net 49.1 percent plan to add staff in March. That’s down from 50.5 percent in the same month a year ago.