condition	mean	min	max
0 h after light	13.2141	12.9948	13.4334
4 h after light	16.02945	16.0245	16.0344
8 h after light	18.36215	18.0708	18.6535
4 h after dark	18.02635	18.0201	18.0326
8 h after dark	18.115099999999998	17.6903	18.5399
12 h after dark	12.42535	11.4075	13.4432