condition	mean	min	max
0 h after light	9.104635	8.79942	9.40985
4 h after light	6.119495	5.54383	6.69516
8 h after light	6.52323	5.23972	7.80674
4 h after dark	10.31185	10.2926	10.3311
8 h after dark	6.946835	6.34714	7.54653
12 h after dark	6.71799	5.79513	7.64085