I am part of a team performing some historical market analysis on the ASX and I was wondering about the availability of historical constituent data for the ASX indices? I have data for the S&P/ASX200 and S&P/ASX300 going back to 2009. However I cannot source quality data going back further than 2009. Can anyone help? If not, can anyone point me in the right direction to obtain this missing data? Ideally I would love to get this data from about 2004 onwards.