All building societies in the UK are members of the Building Societies Association. At the start of 2008, there were 59 building societies in the UK, with total assets exceeding £360 billion. The number of societies in the UK fell by four during 2008 due to a series of mergers brought about, to a large extent, by the consequences of the financial crisis of 2007–2008. With three further mergers in each of 2009 and 2010, and a demutualisation and a merger in 2011, as of 2020 there are now 44 building societies.