You can view the study counts for group, language, and data collection source by clicking on the Study Counts link. The timing tab shows you timing for each study by gender and group for each study. Last, the participants tab shows you the codes for participants who completed the code section of the study. You can download the participant list for easier searching.
Update: These datasets have not been screened for time, but you can screen for specific completion percentages by using the slider on the left. The group numbers have also been dropped for easier viewing of language totals.