condition	mean	min	max
4 h after light	8.633512	8.144579	9.122445
8 h after light	8.614355499999999	8.281906	8.946805
12 h after light	8.9615735	8.554264	9.368883
4 h after dark	9.0810745	9.039704	9.122445
8 h after dark	8.597917	8.073389	9.122445
12 h after dark	9.382833	9.382833	9.382833