condition mean min max 0 h after light 13.727050000000002 11.4152 16.0389 2 h after light 11.181550000000001 10.6302 11.7329 4 h after light 9.34854 8.40528 10.2918 8 h after light 10.713149999999999 8.7448 12.6815 12 h after light 18.764699999999998 17.7087 19.8207 2 h after dark 19.7838 19.5317 20.0359 4 h after dark 15.808699999999998 15.2889 16.3285 8 h after dark 16.83145 16.4562 17.2067 12 h after dark 15.4211 15.2171 15.6251