What is the pass rate of Australian tourist visas?

What is the pass rate of Australian tourist visas? It's very high and not difficult to sign, but it can't be completely guaranteed that it won't be rejected. If rejected, it is better to find a professional institution to sign again, such as replying to the letter. This is a website dedicated to visa refusal. I went to Australia the year before last, but my visa was refused. They did, but it was too expensive and there was no discount!