condition	mean	min	max
4 h after light	4.1578100000000004	4.05589	4.227130000000001
8 h after light	4.184216666666667	4.08459	4.24413
12 h after light	4.25564	4.13189	4.41977
4 h after dark	4.17617	4.00126	4.30944
8 h after dark	4.255863333333333	4.23236	4.28839
12 h after dark	4.2107866666666665	4.1833599999999995	4.247330000000001