There is no built-in method to do that. You will need to make an AJAX call to a remote PHP script that queries the database for previously submitted responses.
Or, if you want to do it manually, you can monitor the data yourself and when the "quota" is met, modify the relevance of the question to hide it.
.
Cheers,
Tony Partner Solutions, code and workarounds presented in these forums are given without any warranty, implied or otherwise.