condition mean min max 4 h after light 5740.6 5740.6 5740.6 8 h after light 6980.6 6221.0 7740.2 12 h after light 7477.549999999999 7324.4 7630.7 4 h after dark 8501.9 7406.0 9597.8 8 h after dark 8703.85 7748.6 9659.1 12 h after dark 7567.900000000001 6851.1 8284.7