Long Island’s unemployment rate rose to 5.1 percent in February, from 4.8 percent in February 2017, state data released Tuesday show. It was the fifth consecutive year-over-year increase since October.

The rate rose in 10 months of 2017 and has been steadily moving away from what is considered full employment, which is 4 percent or below.

The number of employed residents fell by 9,500 last month, compared with a year earlier, to 1.39 million, the lowest for the month since 2015. The number of unemployed Long Islanders rose by 3,300 to 74,300, the Labor Department said. That was the highest for the month since 2015.