condition	mean	min	max
0 h after light	8.14045	7.68772	8.59318
4 h after light	9.235795	8.577	9.89459
8 h after light	9.27368	9.02007	9.52729
4 h after dark	10.713075	9.53725	11.8889
8 h after dark	10.066365	9.56393	10.5688
12 h after dark	9.094529999999999	8.81456	9.3745