condition	mean	min	max
4 h after light	7.12572	7.02533	7.2095
8 h after light	7.173156666666666	7.08086	7.2937899999999996
12 h after light	7.628063333333333	7.4851600000000005	7.7340800000000005
4 h after dark	7.106296666666667	6.94415	7.2237800000000005
8 h after dark	7.0157	6.97388	7.049339999999999
12 h after dark	6.981456666666666	6.88848	7.06005