condition mean min max 2 h after light 18.50895 10.8914 22.3286 6 h after light 13.0691 10.3037 16.8048 10 h after light 13.12676 8.98516 16.1359 14 h after light 14.974799999999998 10.3081 21.185 18 h after light 15.433233333333334 13.4817 16.7628 2 h after dark 13.365733333333333 10.0052 16.6403