condition	mean	min	max
4 h after light	8.72266	7.16932	10.276
8 h after light	6.6859649999999995	6.461	6.91093
12 h after light	7.43192	6.81404	8.0498
4 h after dark	6.214700000000001	4.9306	7.4988
8 h after dark	6.15515	6.02401	6.28629
12 h after dark	7.220665	6.76809	7.67324