The manifestos coded were from three political parties (Conservative, Labour, and Liberal Democrats) and six elections (1987, 1992, 1997, 2001, 2005, and 2010).
D'Manifestatiounen kodéiert aus dräi politesche Parteien (Konservativ, Aarbecht a Liberal Demokraten) an sechs Wahlen (1987, 1992, 1997, 2001, 2005, an 2010).