condition	mean	min	max
4 h after light	28.576021500000003	18.200236	38.951807
8 h after light	21.3363265	20.313654	22.358999
12 h after light	17.510508	16.350885	18.670131
4 h after dark	18.0646925	12.43557	23.693815
8 h after dark	15.996758	15.257436	16.73608
12 h after dark	15.341971	15.341971	15.341971