Of the 2,725 total clients who received treatment in 2017–18:
- 62% (1,699) received treatment in 2017–18 only
- 9% (250) received treatment in both 2016–17 and 2017–18
- 4.1% (111) received treatment in each year from 2015–16 to 2017–18
- 2.3% (63) received treatment in each year from 2014–15 to 2017–18
- 1.2% (32) received treatment in all years, from 2013–14 to 2017–18.
Over the period 2013–14 to 2017–18, a total of 9,899 clients received treatment in Tasmania. Of those:
- 77% (7,659) received treatment in only a single year
- 16% (1,535) received treatment in any 2 of the 5 years
- 5% (492) received treatment in any 3 of the 5 years
- 1.8% (181) received treatment in any 4 of the 5 years
- 0.3% (32) received treatment in all 5 collection years.