Fix Median Multipliers Not Showing

[vkoves]

Description

Fixes the city wide and property specific median multipliers not showing up (e.g. this building burned 4x the median natural gas). Here's a demo from Keating with the medians outlined:

Fixes #54

Testing Instructions

Validated the median multipliers show up and are sound, and that old buildings (like United Center or the Art Institute) still work.

Checklist:

• [ ] My code follows the style guidelines of this project
• [x] I have performed a self-review of my own code
• [x] I have commented my code, particularly in hard-to-understand areas
• [ ] I have added tests that prove my fix is effective or that my feature works
• [x] New and existing unit tests pass locally with my changes

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