condition	mean	min	max
0 h after light	6.82937	6.36539	7.29335
4 h after light	8.33896	8.00798	8.66994
8 h after light	8.14857	8.04287	8.25427
4 h after dark	10.84815	10.3646	11.3317
8 h after dark	9.151074999999999	8.67034	9.63181
12 h after dark	7.889749999999999	7.50274	8.27676