condition mean min max 0 h after light 6.2074 5.99211 6.42269 4 h after light 5.087540000000001 4.47107 5.70401 8 h after light 9.47499 8.93348 10.0165 4 h after dark 12.543949999999999 12.4239 12.664 8 h after dark 9.163509999999999 8.93527 9.39175 12 h after dark 6.50891 6.14477 6.87305