condition	mean	min	max
4 h after light	7.5827366666666665	7.47335	7.6972
8 h after light	7.56865	7.3864600000000005	7.725039999999999
12 h after light	7.656363333333333	7.50167	7.77435
4 h after dark	7.5876866666666665	7.53207	7.690339999999999
8 h after dark	7.6169199999999995	7.51187	7.715319999999999
12 h after dark	7.764270000000001	7.50095	8.147160000000001