condition mean min max 4 h after light 197.113202 191.050763 203.175641 8 h after light 174.956435 172.911582 177.001288 12 h after light 214.11247450000002 136.385903 291.839046 4 h after dark 132.897561 94.091249 171.703873 8 h after dark 159.50987550000002 95.953595 223.066156 12 h after dark 176.532914 176.532914 176.532914