condition	mean	min	max
4 h after light	7.7163900000000005	7.45353	7.97925
8 h after light	7.81269	7.57592	8.04946
12 h after light	8.761050000000001	8.35817	9.16393
4 h after dark	10.00062	9.38004	10.6212
8 h after dark	10.167200000000001	10.0508	10.2836
12 h after dark	9.29836	9.12357	9.47315