In economics, a deadweight loss is said to occur when some people could be made better off without others being made worse off (that is, the current situation is not Pareto optimal).
... 34.0% from 18 to 24, 17.6% from 25 to 44, 20.5% from 45 to 64, and 14.1% who are 65 years of age or older. The median age is 28 years. For every 100 females there are ...