What you talking about? 

Funds returns or Investors returns? (Maybe, read my previous and recent post on what's the difference between them.)

Funds returns - get them from their annual reports, morningstar website, the performance chart within public mutual website, etc.

Investors returns - you need to track it yourself using excel or other means. Public Mutual Online (PMO) will only show the actual value of your fund, which you can calculate the ROI (return on investment). Without the date of purchase or how long you had been holding the fund, you can't calculate the annualized returns.