condition	mean	min	max
4 h after light	6.533153333333333	6.39564	6.640739999999999
8 h after light	6.774853333333333	6.68549	6.94488
12 h after light	7.54814	7.266539999999999	7.7641800000000005
4 h after dark	7.845476666666666	7.56376	8.177389999999999
8 h after dark	7.3136	7.1905	7.46851
12 h after dark	6.92868	6.79823	7.10818