condition mean min max 4 h after light 5.70868 5.32301 6.09435 8 h after light 6.147075 5.85438 6.43977 12 h after light 4.57271 4.33109 4.81433 4 h after dark 5.45548 5.39535 5.51561 8 h after dark 7.6686700000000005 7.34922 7.98812 12 h after dark 6.7959499999999995 6.72142 6.87048