http://www.rba.gov.au/speeches/2018/sp-dg-2018-08-22.html  9/23  22/08/2018  Low Inflation | Speeches | RBA  Graph 7  As I mentioned earlier, the prices of audio, visual and computing equipment (adjusted for quality change) have been falling steadily over the past 25 years.
More recently, the prices of mobile phone handsets and plans have also fallen after the ABS updated its methodology for measuring the prices of these items. As a result, the rate of decline in this group of items has picked up to be closer to 5 per cent per annum, which by itself has taken around 0.2 percentage points off CPI inflation each year.