Hey,
I don't get why in the test CHN does not appear in the carbon list (expected AUS, BHS, CRI ) but my datas shows

[{"location"=>"AUS ", "ammonia"=>122, "nitrogen"=>102, "carbon"=>39}, {"location"=>"BHS ", "ammonia"=>323, "nitrogen"=>363, "carbon"=>39}, {"location"=>"CHN ", "ammonia"=>422, "nitrogen"=>477, "carbon"=>39}, {"location"=>"CRI ", "ammonia"=>92, "nitrogen"=>99, "carbon"=>39}]

where China has the same carbon than the other countries. Why is that?