condition	mean	min	max
4 h after light	9.276875	8.09815	10.4556
8 h after light	7.808645	7.56625	8.05104
12 h after light	8.80388	7.76811	9.83965
4 h after dark	5.548006666666667	5.26597	5.83249
8 h after dark	11.315299999999999	10.5832	11.8502
12 h after dark	8.79106	8.44258	9.19093