condition mean min max ZT0-3 595.55 595.55 595.55 ZT4-7 1587.9 1587.9 1587.9 ZT8-11 1329.4 1329.4 1329.4 ZT12-15 927.8499999999999 927.8499999999999 927.8499999999999 ZT16-19 692.25 692.25 692.25 ZT20-23 605.4 605.4 605.4