condition mean min max 0 h after light 40.7076 40.5686 40.8466 4 h after light 25.57715 24.3679 26.7864 8 h after light 20.0905 18.891 21.29 4 h after dark 22.0701 19.3852 24.755 8 h after dark 29.0749 27.3043 30.8455 12 h after dark 36.090599999999995 32.4929 39.6883