Women are increasingly serving in high-level positions in state government in Rhode Island. A report released Monday shows that women hold 34 percent of the positions on state boards and commissions, up from 15 percent in 2010. The Women’s Fund of Rhode Island, which aims to boost female involvement in government, compiled the report and credited Governor Lincoln Chafee, a Democrat, with working to eliminate the state’s political gender gap. Three of Chafee’s top six senior staff positions are held by women. Of the more than 1,000 people Chafee has appointed since taking office, 41 percent are female.