condition mean min max 4 h after light 4.14345 4.11086 4.17039 8 h after light 4.21086 4.0846599999999995 4.36512 12 h after light 4.233553333333333 4.09741 4.44943 4 h after dark 4.20634 4.0735 4.44258 8 h after dark 4.1472299999999995 4.05301 4.31543 12 h after dark 4.115476666666666 3.9882699999999995 4.34891