Hon GRANT ROBERTSON (Minister of Finance) on behalf of the Minister of Revenue: I have seen a report with that data in it, which is an experimental estimate of effective tax rates for a sample of people. This report was advice requested as part of work to help improve data collection—in particular, regarding the household economic survey run by Statistics New Zealand—and to bring New Zealand into line with the data collection methods in most other OECD countries. In response to the second part of the member's question, the Government continues to work on making New Zealand's tax system fairer. 