I have these two deliverables:

5. Find the mean, median, min and max winsorized Z-Score for the whole sample.
6. Find the mean, median, min, and max winsorized Z-Score by SIC industry.
7. Find the mean, median, min, and max winsorized Z-Score by year.

However when I try to use sysuse auto it says "no; data in memory would be lost", and i cannot find how to get this statistical data in one swipe as my professor is asking for. Advice?