Similarly to differences in voter turnout, instances of malapportionment across districts can also cause disproportionate results for the legislature as a whole, but they are far less disproportionate than non-PR systems. In the PR-STV elections to the Australian Senate, all original states have the same number of senators regardless of population, intended to guard the interests of smaller states like Tasmania and South Australia against larger states like New South Wales and Victoria (both states containing a majority of Australia’s population). However, results are proportional within a state; and if preferences are similar across large and small states no major disproportionality is generated. Each of Australia’s states are strongly urbanised to a similar (~75% or more), and so rural-urban political divides are similar in each state, resulting in a fairly proportional composition