There were 662 fatal workplace injuries in 2016 among independent workers — which includes human cloud workers — and 613 in 2017, according to an article released by the US Bureau of Labor Statistics.

The definition of independent worker in the report includes independent contractors; contractors who use an intermediary such as Uber, Lyft or another human cloud firm; on-call employees such as substitute teachers; day laborers; and temporary agency workers.

Independent workers represented 12% of fatal workplace injuries from 2016 and 2017, according to the report.

The most deaths were recorded by independent contractors with 516 in 2017. Contractors who use intermediaries reported 17 fatal workplace injuries. For temporary agency workers, the number of workplace fatal injuries was 49 in 2017, down from 58 in the previous year.

Among independent workers, “heavy and tractor-trailer truck drivers” had the highest number of fatal injuries at 173.

One note in the report was that violence, including homicides and suicides, is relatively less frequent among independent workers than all other workers.