condition	mean	min	max
4 h after light	7.77456	7.65756	7.854080000000001
8 h after light	7.594093333333333	7.427739999999999	7.775510000000001
12 h after light	7.49531	7.21748	7.652939999999999
4 h after dark	8.1736	8.03107	8.31225
8 h after dark	8.13184	7.8246899999999995	8.425880000000001
12 h after dark	7.982053333333333	7.6804	8.15198