condition	mean	min	max
4 h after light	4.096909999999999	4.063269999999999	4.1616599999999995
8 h after light	4.172833333333333	4.10685	4.24028
12 h after light	4.122996666666666	4.01096	4.25821
4 h after dark	4.123620000000001	3.9530000000000003	4.307980000000001
8 h after dark	4.172623333333333	4.03889	4.34301
12 h after dark	4.2311499999999995	4.18229	4.28484