The cost of workers' compensation has gone down significantly across the nation over the past 15 years. In a neighboring state of Illinois, the numbers of claims fell from 8.7 per 100 full-time workers to 4.9 claims per 100 workers in 2010.
All employers are required to purchase workers' compensation insurance and probably more workers are covered than ever. What probably has greatly contributed to the reduction of workplace accident claims is simply that workplaces have been made safer over the years.