condition	mean	min	max
4 h after light	6.593405000000001	4.83407	8.35274
8 h after light	14.37755	13.6067	15.1484
12 h after light	13.225750000000001	11.6285	14.823
4 h after dark	24.84225	24.0586	25.6259
8 h after dark	15.09345	14.5758	15.6111
12 h after dark	10.562180000000001	9.56656	11.5578