condition mean min max 2 h after light 13.329564999999999 9.38529 15.7996 6 h after light 9.406781666666667 7.50748 10.4018 10 h after light 8.385776666666667 5.71263 10.8964 14 h after light 9.600793333333334 5.45122 13.6937 18 h after light 8.74776 7.11348 10.6257 2 h after dark 21.1078 17.3029 26.5067