You are seeing "unspecified" because you are not capturing a value in v16 on the page URLs shown. For example, the first URL shown in your screenshot is the home page for your website, and I do not see a v16 value in the Adobe Analytics call on that page.
@bindukumari1990 'Unspecified' occurs in the report when a value is not passed in the server call. It might be possible that the value is not being sent in every server call or you might be checking for the time range when changes were not made. Also, persistance of evar plays an important role. Can you please check the persistance for this evar ? Also, you can extract the raw data feed to verify if evar16 is being sent in all server calls or if the values is persisting (evar16 is empty and post_evar16 has a value).