4530.0 - Crime Victimisation, Australia, 2016-17 Quality Declaration 
Previous ISSUE Released at 11:30 AM (CANBERRA TIME) 16/02/2018   
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WESTERN AUSTRALIA

HOW HAVE PERSONAL CRIME VICTIMISATION RATES CHANGED OVER TIME?

No fitted functions that met the inclusion criteria were identified for physical assault, face-to-face threatened assault, or non face-to-face threatened assault in Western Australia, nor was there any significant difference in the victimisation rate for these personal crimes between 2008-09 and 2016-17.

VICTIMISATION RATES, Selected personal crimes, Western Australia, 2008-09 to 2016-17
Graph: shows data points for victimisation rates in Western Australia for all personal crimes
Australian Bureau of Statistics
© Commonwealth of Australia 2018.



HOW HAVE HOUSEHOLD CRIME VICTIMISATION RATES CHANGED OVER TIME?

The fitted function analysis showed a decline in the victimisation rate for malicious property damage in Western Australia since 2008-09. Victimisation rates for attempted break-in and other theft have also generally declined, but to a lesser extent.

Although no fitted functions that met the inclusion criteria were identified for break-in in Western Australia, when undertaking significance testing (comparing two time points) the victimisation rate for theft from a motor vehicle was significantly lower in 2016-17 (5.4%) compared to 2008-09 (7.5%)

No fitted functions that met the inclusion criteria were identified for break-in and motor vehicle theft in Western Australia, nor was there any significant difference in the victimisation rate for these household crimes between 2008-09 and 2016-17.

VICTIMISATION RATES, Selected household crimes, Western Australia, 2008-09 to 2016-17(a)(b)
Graph: shows data points for victimisation rates in Western Australia for all household crimes and fitted functions for attempted break-in, malicious property damage and other theft
Australian Bureau of Statistics
© Commonwealth of Australia 2018.


Footnote(s): (a) The fitted functions used to analyse patterns of change in victimisation rates over time have not taken into account the survey error associated with the annual victimisation rates. This is expected to have limited impact on the analysis, as only survey estimates with RSEs of 25% or less were included in the analysis. For further information on survey error refer to the Technical Note. (b) Fitted functions are: attempted break-in is a polynomial function with equation y = 0.0549x2 - 0.6337x + 5.131 RČ = 0.81; malicious property damage is a logarithmic function with equation y = -3.166ln(x) + 14.547 RČ = 0.9676; other theft is a polynomial function with equation y = 0.0776x2 - 0.911x + 6.031 RČ = 0.8774.