condition	mean	min	max
4 h after light	6.097606666666667	5.90442	6.30631
8 h after light	6.16491	5.87266	6.42204
12 h after light	6.07069	5.61219	6.3915
4 h after dark	6.387813333333333	6.0038	6.58299
8 h after dark	6.065126666666667	5.79901	6.21244
12 h after dark	6.3340000000000005	6.1498800000000005	6.46776