[#151] Improve users.html page by adding percentage of old files

[pjeli]

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GitHub Issue

Fixes #151

Checklist:

• This pull request updates the documentation
• This pull request changes the code
• Title of the PR is of format (example) : [#25] Add Pull Request Template, where [#25] is the GitHub issue number

What is the purpose of this pull request?

How was this change validated?

Commit Guidelines

• My commits all reference GH issues in their subject lines, and I have squashed multiple commits if they address the same issue. In addition, my commits follow the guidelines from "How to write a good git commit message":
  1. Subject is separated from body by a blank line
  2. Subject is limited to 50 characters
  3. Subject does not end with a period
  4. Subject uses the imperative mood ("add", not "adding")
  5. Body wraps at 72 characters
  6. Body explains "what" and "why", not "how"

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (master@07e2769). Click here to learn what that means.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master     #155   +/-   ##
=========================================
  Coverage          ?   76.88%           
  Complexity        ?     1069           
=========================================
  Files             ?       40           
  Lines             ?     5585           
  Branches          ?      516           
=========================================
  Hits              ?     4294           
  Misses            ?      976           
  Partials          ?      315

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