condition	mean	min	max
4 h after light	8.8379965	8.521871	9.154122
8 h after light	8.521871	8.521871	8.521871
12 h after light	8.1257875	7.191158	9.060417
4 h after dark	8.100849	7.679827	8.521871
8 h after dark	8.215088999999999	7.785327	8.644851
12 h after dark	8.605562	8.605562	8.605562