The following two reports in Experience Analytics do not display any graph and show "No data to display".

1. Behavior - Pages - Exit pages - Top exit pages by conversions
2. Behavior - Page URLs - Exit page URLs - Top exit page URLs by conversions

The description for these two reports in the official document says -

The exit page/page URLs that have generated the most efficient high value visits on your website.

But these two reports show graphs:

3. Behavior - Pages - Exit pages - Top exit pages by value per visit
4. Behavior - Page URLs - Exit page URLs - Top exit page URLs by value per visit

Then, the reports 1 & 2 should also show some data, according to that definition. Is that correct.

If not, what could be the reason. Is there any configuration to be made like a goal.

Using Sitecore 8.2 update 5