As many times as you like — there's no fixed maximum.
You can keep renewing your E33G year after year for as long as you continue to meet the requirements. The catch is that we have to re-verify everything at every single renewal: your annual income of at least USD 60,000, your bank balance of at least USD 2,000, and a valid employment contract with a company based outside Indonesia.
As long as you can show all of that again each time, there's no limit on how many consecutive years you can stay.