This document contains a summary of survey results from Ipsos MORI tracking public opinion on the most important issues facing Britain. The January 2015 survey found that immigration was the top issue at 22%, followed by the economy at 16% and education at 14%. Unemployment and the NHS rounded out the top five. The results also showed differences by age, social class and between Labour and Conservative supporters. Charts are included to show trends on key issues over time, with notes on historical events that may have impacted public opinion.