 
<translate> Jiri usoro nke ịmara zaa ajụjụ ndị a. A malitere asọmpi Iko Mba Yurop n'afọ 1955, ebe Real Madrid bụ ndị na-agba Barcelona mgba na-emeri asọmpi ise mbụ. Na 1959, Barcelona banyere asọmpi a na nke mbụ ya, mgbe ha meriri oge 1958 - 59 La Liga. Ruo afọ ndị 1990, klọb ahụ enwechaghị ihe ịga nke ọma, ewezuga ebe ha na-agba ọsọ na 1961 na 1986. N'afọ 1992, Johan Cruyff's Dream Team meriri asọmpi European Cup mbụ ha site na mmeri 1 - 0 megide Sampdoria. Kemgbe ahụ, Barcelona emeriwo asọmpi ahụ ugboro anọ ọzọ, na 2006, 2009, 2011 na 2015. Barcelona eguzobewo onwe ya dịka otu n'ime ndị kachasị ike na asọmpi Europe, mgbe a tụrụ ya na ọnụọgụ UEFA.  Zaa ajụjụ a dabere n'ihe e kwuru ebe ahụ: olee mgbe ikpeazụ Barcelona meriri n'asọmpi Champions League? <eng> Use stream of consciousness to answer the following. The European Cup was inaugurated in 1955, with Barcelona's arch-rivals Real Madrid winning the first five editions. In 1959, Barcelona entered this competition for the first time, after winning the 1958 -- 59 La Liga season. Until the 1990s, the club had little success, apart from their runner-up places in 1961 and 1986. In 1992, Johan Cruyff's Dream Team won their first European Cup with a 1 -- 0 win against Sampdoria. Since then, Barcelona has won the competition four additional times, in 2006, 2009, 2011 and 2015. Barcelona has established itself as one of the strongest sides in European competitions, when measured in UEFA coefficients.

Answer this question based on the passage: when did barcelona last win the champions league? 