condition	mean	min	max
4 h after light	12.680150000000001	12.5318	12.8285
8 h after light	8.96318	8.90242	9.02394
12 h after light	9.43883	9.33262	9.54504
4 h after dark	15.0565	14.3204	15.7926
8 h after dark	15.0296	14.9953	15.0639
12 h after dark	14.2918	13.5786	15.005