condition	mean	min	max
4 h after light	49.553	40.4529	58.6531
8 h after light	15.54595	14.7045	16.3874
12 h after light	8.556955	7.71921	9.3947
4 h after dark	4.27159	4.02202	4.52116
8 h after dark	6.187250000000001	5.83889	6.53561
12 h after dark	18.24725	18.119	18.3755