Alteryx Challenge

[AleF]

Hi, 

I've been working on the following challenge without any luck.

Identify the 50 most efficient buildings as measured by green house gas emissions per square foot (note: lower values mean better efficiency). What construction year has the most buildings in the top 50 list?

Any help is appreciated! Thank you!

[TimN · Accepted solution]

Does this make sense?

[AleF]

Yes, thank you!