condition mean min max 0 h after light 22.07435 20.4849 23.6638 4 h after light 14.04145 12.6086 15.4743 8 h after light 16.623849999999997 16.5171 16.7306 4 h after dark 24.9665 21.8261 28.1069 8 h after dark 19.8134 19.527 20.0998 12 h after dark 17.337249999999997 16.0705 18.604