while the majority sampled have four voices, it is possible to have as few as three voices, and as many as six voices. the  estate has a  swimming pool with an underwater music system, as well as a  gym and a  dining room. the town's population peaked in 1915 at 125; by 1936, only a handful of residents remained. the attackers fled with heavy weapons and at least two tanks. in the 2010s, the barrier was generally closed twice a year but the average is still 6–7 due to the barrier being raised 50 times in 2013–14. 