condition mean min max 0 h after light 9.76765 8.8767 10.6586 2 h after light 16.0688 15.3148 16.8228 4 h after light 17.981099999999998 15.8035 20.1587 8 h after light 36.91625 28.7555 45.077 12 h after light 11.452304999999999 9.56971 13.3349 2 h after dark 7.19278 6.49659 7.88897 4 h after dark 6.070175 5.97859 6.16176 8 h after dark 6.445320000000001 5.63713 7.25351 12 h after dark 6.290425 5.14264 7.43821