condition mean min max 4 h after light 1141.8541035 987.809617 1295.89859 8 h after light 1113.481968 917.3726 1309.591336 12 h after light 1186.9957494999999 1174.248055 1199.743444 4 h after dark 1054.1320015000001 987.001288 1121.262715 8 h after dark 704.7610285000001 547.01876 862.503297 12 h after dark 1098.794975 1098.794975 1098.794975