Date	Time    	Helium	Nitrogen  
04/17	10:00 pm	  37.6
04/17	11:00 pm	  37.8
04/17	00:00 am	  37.8
04/18	01:00 am	  37.3
04/18	02:00 am	  37.2
04/18	03:00 am	  37.2
04/18	04:00 am	  37.3
04/18	05:00 am	  37.3
04/18	06:00 am	  36.8
04/18	07:00 am	  36.9
04/18	08:00 am	  37.0
04/18	09:00 am	  37.1
04/18	10:00 am	  37.2
04/18	11:00 am	  36.6
04/18	12:00 pm	  36.6
04/18	01:00 pm	  36.7
04/18	02:00 pm	  36.7
04/18	03:00 pm	  36.1
04/18	04:00 pm	  36.1
04/18	05:00 pm	  36.1
04/18	06:00 pm	  36.1
04/18	07:00 pm	  36.2
04/18	08:00 pm	  35.7
04/18	09:00 pm	  35.8
04/18	10:00 pm	  35.9
04/18	11:00 pm	  35.9