condition	mean	min	max
0 h after light	21.507649999999998	20.7883	22.227
4 h after light	19.816850000000002	19.1837	20.45
8 h after light	18.8599	18.3065	19.4133
4 h after dark	15.9413	15.8093	16.0733
8 h after dark	16.4618	15.7865	17.1371
12 h after dark	19.17585	16.812	21.5397