Sometimes it can be hard knowing what type of stock to buy specially leaving in Australia a country with population of 24,640,398 since 31 December 2016. A report from March 07th, 2016 by ibisworld revealed that Top 10 companies by revenue. Number one Retail position is Wesfarmers.
Australia banks also referred as the big four holding $3.5 trillion between the the others are Rio Tinto, BHP Billiton, Telstra and Caltex Australia.
https://www.ibisworld.com.au/media/2016/03/07/ibisworld-reveals-australias-top-1000-companies/ 