condition	mean	min	max
4 h after light	6.18305	5.98187	6.29317
8 h after light	6.562706666666666	6.22814	6.97187
12 h after light	6.466266666666667	6.16579	6.891560000000001
4 h after dark	6.22898	6.19724	6.283530000000001
8 h after dark	6.104516666666666	5.892469999999999	6.32808
12 h after dark	5.90796	5.7308699999999995	6.05173