condition mean min max 4 h after light 12.22815 10.3964 14.0599 8 h after light 9.47831 8.41522 10.5414 12 h after light 8.695245 8.49824 8.89225 4 h after dark 10.9517 10.3345 11.3076 8 h after dark 11.616133333333334 10.6276 12.2141 12 h after dark 9.590096666666668 7.21398 11.7557