I am looking for historical JSE market capitalisation data per quarter/month from 1960 to today
You can contact the statistics & actuarial science department in Stellenbosch. They have access to I-net bridge. The person to contact there is Dr Chris Muller firstname.lastname@example.org or 021-8083245.
A second option is to email Henem van Staden at McGregor BFA, he is very helpful, email@example.com