"Figure 10: Number of probabilistic matches included in SPD V2.0 by England regions and Wales, 2011 and 2015","" "","" "","" "Notes","1. SPD – Statistical Population Dataset. 2. PR – NHS Patient Register. 3. CIS – Department for Work and Pensions (DWP) Customer Information System." "Unit","Number of probabilistic matches between PR and CIS" "","" "England regions and Wales","2011","2015" "Wales","5692","8647" "South West","9291","15055" "South East","19521","31066" "London","66201","82614" "East","13407","21299" "West Midlands","15316","19190" "East Midlands","8613","13223" "Yorkshire and the Humber","11279","16096" "North West","17856","23946" "North East","3722","6756"