condition mean min max 4 h after light 7.204250999999999 4.584035 10.0544 8 h after light 14.774433333333333 11.94897 20.11984 12 h after light 18.248829999999998 13.903839999999999 25.58625 16 h after light 11.169637 8.791141 13.361260000000001 4 h after dark 9.589897 8.383785000000001 10.7335 8 h after dark 6.508237333333334 2.310845 10.09716