By Tania Suárez, in Madrid | Bankinter, with €59bn in assets, is the smallest of the Spanish listed banks but it has surprised everyone with its brilliant results. Net profit at the end of 2011 amounted to €181.2mn with an improvement of 20% compared to 2010. The gross margin was of €1,104.48mn, an increase of 0.20% year on year. Its income before provisions grew by more than 2.9% compared to…