The legal framework around authorised sea-raiding was considerably murkier outside of Europe. These impressive results however may hide a murkier reality. The situation became murkier when the "Commonwealth Franchise Act" was passed in 1902. "Soler's Sherman Act counterclaim poses a murkier problem," Coffin wrote. Analysts complained Yukos' ownership structure was getting murkier and murkier. Serfs worked in family units, whereas the concept of family was generally murkier for slaves. After '91, the numbers are murkier, but clearly they went up.