condition mean min max 4 h after light 7105.9 7105.9 7105.9 8 h after light 7061.65 6904.8 7218.5 12 h after light 7107.9 7081.6 7134.2 4 h after dark 6703.049999999999 6592.4 6813.7 8 h after dark 6648.95 6343.9 6954.0 12 h after dark 6481.6 6326.1 6637.1