condition	mean	min	max
4 h after light	7.93672	7.81198	8.17027
8 h after light	7.962276666666667	7.85838	8.03828
12 h after light	8.315586666666666	8.19315	8.43272
4 h after dark	8.33848	8.12312	8.57552
8 h after dark	8.63586	8.42084	8.93295
12 h after dark	8.146296666666666	7.896710000000001	8.34413