condition	mean	min	max
4 h after light	2.39438	2.2767	2.51206
8 h after light	2.208985	1.97117	2.4468
12 h after light	2.697325	2.67408	2.72057
4 h after dark	3.1949199999999998	3.0197	3.37014
8 h after dark	3.610575	3.55193	3.66922
12 h after dark	3.987775	3.82305	4.1525