condition mean min max 4 h after light 46.64825 38.8135 54.483 8 h after light 37.01235 36.3775 37.6472 12 h after light 76.98599999999999 73.4683 80.5037 4 h after dark 99.6957 98.9172 100.276 8 h after dark 94.9042 93.5961 96.5444 12 h after dark 66.1678 60.7948 69.3543