In 2003, Han and Waldfogel found that “only about 60% of private sector workers are covered” due to the clause stipulating a minimum number of employees, and once the clause stipulating a minimum number of hours worked is added, only 46% of private sector workers are eligible for leave under the FMLA. In June 2007, the Department of Labor estimated that of 141.7 million workers in the United States, 94.4 million worked at FMLA-covered worksites, and 76.1 million were eligible for FMLA leave. Only eight to 17.1 percent of covered, eligible workers (or between 6.1 million and 13.0 million workers) took FMLA leave in 2005.