condition mean min max ZT0-3 716.8499999999999 716.8499999999999 716.8499999999999 ZT4-7 595.9 595.9 595.9 ZT8-11 610.45 610.45 610.45 ZT12-15 643.4 643.4 643.4 ZT16-19 608.45 608.45 608.45 ZT20-23 663.1 663.1 663.1