Hi
MC11VA0ITMSETUP is a cluster table, you cannot see data directly here..
RSA3 has a field called Data Records / Calls and Display Extr calls... are they in default settings?
of 100 and 10 respectively? Then RSA3 would only extract 100X10 = 1000 records.
A report RMCEX_SETUP_ENTRIES ( from SE38) can give you number of records in setup table per application component, but there might not be one to one mapping with extractor checker.
Cheers
Anindya