condition mean min max 4 h after light 5.672515000000001 5.26701 6.07802 8 h after light 8.964255 8.90738 9.02113 12 h after light 7.462524999999999 7.07961 7.84544 4 h after dark 7.762146666666666 6.27822 9.08588 8 h after dark 10.766433333333334 10.1066 11.1413 12 h after dark 7.676136666666666 6.86188 8.29042