condition	mean	min	max
4 h after light	16.9219015	15.763191	18.080612
8 h after light	18.305364	16.707229	19.903499
12 h after light	19.2128665	15.067391	23.358342
4 h after dark	18.666248500000002	18.080612	19.251885
8 h after dark	19.602828	14.612625	24.593031
12 h after dark	12.11496	12.11496	12.11496