Passage: Outside of their research work, every year, Ifri hosts guest speakers from all over the world for them to shed light upon international issues. The Institute organizes about 40 conferences each year in Paris (42 in 2011). Guest speakers from previous years have included between others: Nicolas Sarkozy, Dmitri Medvedev, Hu Jintao, Jalal Talabani, Hamid Karzai, Vladimir Putin, Mikheil Saakashvili, Abdoulaye Wade, Vaclav Klaus, Pervez Musharraf, Abdullah Gül, Boris Tadic, Viktor Yanukovych, Paul Kagamé, Herman Van Rompuy, José Manuel Barroso, and Anders Fogh Rasmussen.

Question: how many conferences does the organization arrange in one year?
40