condition	mean	min	max
0 h after light	20.7603	20.5976	20.923
4 h after light	6.9957899999999995	6.67782	7.31376
8 h after light	6.181655	5.9852	6.37811
4 h after dark	7.16033	6.01226	8.3084
8 h after dark	9.618950000000002	8.8663	10.3716
12 h after dark	19.90665	17.5891	22.2242