condition mean min max 4 h after light 8644.2 8644.2 8644.2 8 h after light 9264.5 8923.3 9605.7 12 h after light 8232.0 7624.4 8839.6 4 h after dark 7670.549999999999 6907.8 8433.3 8 h after dark 8121.65 7726.0 8517.3 12 h after dark 8579.2 8489.9 8668.5