condition	mean	min	max
4 h after light	7.85621	7.58732	8.05509
8 h after light	7.50767	7.44035	7.5848
12 h after light	7.172593333333333	7.08171	7.34175
4 h after dark	7.63919	7.2923	7.93128
8 h after dark	7.832916666666667	7.49607	8.22156
12 h after dark	8.171443333333333	7.996989999999999	8.2976