condition mean min max 4 h after light 1131.090791 859.295655 1402.885927 8 h after light 1185.1144115 1078.015342 1292.213481 12 h after light 1267.5685334999998 1090.54747 1444.589597 4 h after dark 1010.77811 839.000564 1182.555656 8 h after dark 947.4617115 875.078211 1019.845212 12 h after dark 844.392098 844.392098 844.392098