condition mean min max 4 h after light 5.21069 4.6269 5.79448 8 h after light 5.983510000000001 5.75616 6.21086 12 h after light 7.88208 7.51817 8.24599 4 h after dark 8.912573333333333 8.38295 9.77535 8 h after dark 7.60419 7.22663 8.19909 12 h after dark 5.356506666666666 5.20427 5.52042