Nationally, the number of people without health insurance jumped 5 percent from 2005 to 2006 and 22 percent since 2000, according to data released last week from the U.S. Census Bureau. The number of uninsured in Wisconsin has remained basically unchanged for the period, largely because the availability of state-sponsored insurance has offset the trend of reduced employer-provided health benefits in private industry, according to Amy Rynell, director of the Chicago-based Heartland Alliance for Human Needs and Human Rights, which provides a variety of services for the needy.