CEDAR RAPIDS — Iowa’s unemployment rate was 3.8 percent in May, unchanged from April, according to Iowa Workforce Development.Total nonfarm employment rebounded last month by adding 2,200 jobs. Gains were led by hiring in the private services and goods-producing sectors.Government shed 800 jobs in May due to larger-than-expected seasonal losses primarily in state government, but remains up 2,900 jobs since last year.Jobs were added in durable goods (1,000) along with nondurable goods factories (700).