condition mean min max ZT0-3 3330.66 3330.66 3330.66 ZT4-7 4404.96 4404.96 4404.96 ZT8-11 5865.565 5865.565 5865.565 ZT12-15 7173.349999 7173.349999 7173.349999 ZT16-19 5060.735555666666 5060.735555666666 5060.735555666666 ZT20-23 4542.781111333334 4542.781111333334 4542.781111333334