condition mean min max 0 h after light 48.828450000000004 47.0142 50.6427 4 h after light 47.7212 44.6572 50.7852 8 h after light 56.9568 53.8125 60.1011 4 h after dark 90.9322 77.9144 103.95 8 h after dark 99.49325 88.7985 110.188 12 h after dark 50.735299999999995 48.445 53.0256