condition	mean	min	max
0 h after light	7.60846	7.49447	7.72245
4 h after light	7.368435	6.88503	7.85184
8 h after light	7.3185150000000005	6.18233	8.4547
4 h after dark	6.78923	6.16235	7.41611
8 h after dark	8.990705	8.83364	9.14777
12 h after dark	7.465665	7.23007	7.70126