Select one or more Benefit Categories: Click on the Benefit Categories you want to select, to add it to the selection list. There are three broad types of benefit categories. Incidence of benefits categories show the percentage of full-time employees covered by or eligible for coverage. Percentage of Employees with...categories show percentages of employees with coverage for a benefit in plans with a certain feature. Average categories show either dollar amounts of a benefit or a requirement (for example, average amount of life insurance benefit or average employee contribution for single medical care coverage) or average duration of a benefit (average number of paid holidays).