"Figure 4: Active membership of private sector occupational pension schemes by status and benefit structure, 2008 to 2015","" "UK","" "","" "Notes","1. DB - Defined Benefit. 2. DC - Defined Contribution." "Unit","Millions" "","" ""," DB Open"," DB Closed"," DC Open"," DC Closed" "2008","1.1","1.5","1","0.1" "2009","1","1.3","0.9","0.1" "2010","1","1.1","0.9","0.1" "2011","0.9","1.1","0.8","0.1" "2012","0.6","1.1","0.9","0.1" "2013","0.6","1","1.1","0.1" "2014","0.6","1","3.1","0.1" "2015","0.6","1","3.9","0.1"