condition	mean	min	max
4 h after light	8.5843965	8.280131	8.888662
8 h after light	8.1074985	7.934866	8.280131
12 h after light	7.862555	7.444979	8.280131
4 h after dark	8.149748	7.991461	8.308035
8 h after dark	8.068999	7.596797	8.541201
12 h after dark	7.986423	7.986423	7.986423