The first table in the Text Explorer report window contains the following summary statistics:
Number of Terms
The number of terms in the Term List.
Number of Cases
The number of documents in the corpus.
Total Tokens
The total number of terms in the corpus.
Tokens per Case
The number of tokens divided by the number of cases.
Number of Non-Empty Cases
The number of documents in the corpus that contain at least one term.
Portion of Non-Empty Cases
The proportion of documents in the corpus that contain at least one term.