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Table 1 Availability of security devices per sweep, 2008/2009–2011/2012 CSEW

From: The effectiveness of burglary security devices

Security device CSEW sweep
  2008/2009 2009/2010 2010/2011 2011/2012
Burglar alarm 29.4 29.4 28.3 27.6
CCTV 4.6 4.6 4.9 5.3
Dummy alarm 4.6 4.1 5.2 4.6
Door double or deadlocks 78.9 80.3 77.7 76.9
External lights on Sensor/Timer 46.6 45.1 42.6 42.5
Indoor lights on Sensor/Timer 26.0 24.2 21.5 21.5
Security Chains 33.9 31.6 31.0 29.6
Window Bars or Grilles 1.8 2.5 2.4 2.2
Window Locks 85.2 87.0 82.0 83.0