condition mean min max 4 h after light 10.656843 10.610766 10.70292 8 h after light 11.043084499999999 10.486175 11.599994 12 h after light 10.437852 10.19866 10.677044 4 h after dark 11.194331 10.903374 11.485288 8 h after dark 10.240019499999999 9.29386 11.186179 12 h after dark 8.948263 8.948263 8.948263