The smooth completion of the 2 February election did not resolve Thailand's political situation, as issues of continuing relevancy remained of concern to the caretaker government: firstly, due to protester blockades, 28 constituencies failed to register candidates; secondly, the constitution required at least 475 filled seats, or 95 per cent of the total number of seats, and the problems caused by protesters meant that this target was not reached—the EC, which believes that the final result will fall three seats short, explained that it would be necessary to hold by-elections over several months in problematic constituencies until all 500 members of the parliament's lower house were selected. In the 2011 elections, a 75 per cent voter turnout rate was registered.