condition	mean	min	max
4 h after light	6.7002299999999995	6.27426	7.1262
8 h after light	5.175385	5.12309	5.22768
12 h after light	7.034015	6.71864	7.34939
4 h after dark	12.8082	12.769	12.8474
8 h after dark	9.479285	8.26527	10.6933
12 h after dark	9.357895	8.90802	9.80777