condition	mean	min	max
4 h after light	68.893	54.0782	83.7078
8 h after light	98.11935	96.6678	99.5709
12 h after light	272.0615	259.26	284.863
4 h after dark	277.7665	273.41	282.123
8 h after dark	183.102	180.127	186.077
12 h after dark	114.6045	108.631	120.578