Fig. 6

Changing SPFs for selected security combinations, 1992–1996 to 2008/09 to 2011/12 CSEW. The 1992–1996 CSEW data about lights is assumed to correspond to external lights, internal lights or both in the post-1996 CSEW sweeps. The white bar for 1998–2000 WIDE denotes non-statistically significant odds ratios and SPF. Security was measured at the time of the interview for non-victims and the time of burglary for victims