The cumulative weight of European property stocks in the global listed property sector - as represented in the GPR 250 Index - has plunged to 14% from 21% in the past four years, according to Global Property Research. From 1 January 2008 to 31 December 2011, the number of European stocks included in the GPR 250 Index fell to 54 from 70. This decrease is largely due to the exclusion of less liquid stocks, GPR said.