premise: The annual number of units of outerwear created in the United States has remained remarkably constant over the last several decades, varying from 12.5 units per capita in 1967 to 13.4 units in 1995, while the number of production workers has continued to drop, from 1,098,200 in 1960 to 664,400 in 1997.
hypothesis: The annual number of units of outerwear made in the United States has decline rapidly over the last several decades.