condition mean min max 4 h after light 16.6481135 16.007213 17.289014 8 h after light 18.745981 17.434974 20.056988 12 h after light 15.015762 14.542277 15.489247 4 h after dark 15.990567 15.522191 16.458943 8 h after dark 17.6986415 16.922182 18.475101 12 h after dark 16.97211 16.97211 16.97211