Monitoring Our Light Usage!!

Over the weekend we monitored our light usage at home. We combined our results:

Saturday
0-4 hours - 10 students
5-9 hours - 4 students
10-14 hours - 4 students
15-19 hours - 1 student

Sunday
0-4 hours - 10 students
5-9 hours - 2 students
10-14 hours - 5 students
15-19 hours - 1 student
20+ - 1 student