condition	mean	min	max
4 h after light	8.730380499999999	7.83614	9.624621
8 h after light	8.5618885	8.540388	8.583389
12 h after light	8.5092575	8.322675	8.69584
4 h after dark	9.357777500000001	8.950416	9.765139
8 h after dark	9.314638500000001	9.277467	9.35181
12 h after dark	8.7637	8.7637	8.7637