condition mean min max ZT0-3 9.825062 9.825062 9.825062 ZT4-7 10.0272255 10.0272255 10.0272255 ZT8-11 11.6221225 11.6221225 11.6221225 ZT12-15 9.30029 9.30029 9.30029 ZT16-19 9.692492999999999 9.692492999999999 9.692492999999999 ZT20-23 10.484088499999999 10.484088499999999 10.484088499999999