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Aggregate sentence length
Of all sentenced prisoners, 4% (913) were serving a life term or other indeterminate sentence. Just over one quarter (26% or 6,047) of sentenced prisoners had an aggregate sentence length imposed ranging from 2 years to less than 5 years, while 21% (4,908) had an aggregate sentence length of between 5 years and under 10 years. Approximately 33% (7,675) of prisoners had an aggregate sentence length of less than 2 years. Periodic detainees accounted for 3% (749) of all sentenced prisoners.
Excluding prisoners with indeterminate and periodic detention sentences, the median aggregate sentence length for sentenced prisoners was unchanged from 2009 at 3 years (36 months). For information about interpreting mean and median sentence length based on a census 'snapshot' see Explanatory Notes, paragraphs 78-80.
The longest median aggregate sentence lengths at 30 June 2010 were for homicide (approximately 14.6 years or 175 months), miscellaneous offences (10 years or 120 months) and sexual assault (6.6 years or 79 months). (Table 2.8)
Expected time to serve
Expected time to serve takes into account the earliest date of release for sentenced prisoners. Almost one quarter (24%) of sentenced prisoners (5,600) had an expected time to serve between 2 and less than 5 years, while 21% of prisoners (4,914) had an expected time to serve greater than 5 years.
Excluding prisoners with indeterminate, life without a minimum, and periodic detention sentences, the median expected time to serve for sentenced prisoners at 30 June 2010 was 2 years (24 months), an increase of just over two months from 2009.
The median expected time to serve was highest for the offence category of homicide (11 years or 132 months), followed by miscellaneous offences (6 years or 72 months) and sexual assault (4.5 years or 54 months). (Table 2.8)