condition	mean	min	max
0 h after light	12.506499999999999	11.8736	13.1394
4 h after light	4.66629	3.95837	5.37421
8 h after light	3.9601800000000003	3.70727	4.21309
4 h after dark	4.91784	4.34964	5.48604
8 h after dark	6.58878	6.42868	6.74888
12 h after dark	9.01164	5.97588	12.0474