condition	mean	min	max
0 h after light	19.822049999999997	19.2751	20.369
4 h after light	16.535899999999998	15.4967	17.5751
8 h after light	12.7577	11.1709	14.3445
4 h after dark	13.65105	12.0665	15.2356
8 h after dark	17.978450000000002	17.1533	18.8036
12 h after dark	17.2214	15.9899	18.4529