condition mean min max ZT0-3 155.22899999999998 155.22899999999998 155.22899999999998 ZT4-7 120.9675 120.9675 120.9675 ZT8-11 100.40505 100.40505 100.40505 ZT12-15 117.97399999999999 117.97399999999999 117.97399999999999 ZT16-19 180.72899999999998 180.72899999999998 180.72899999999998 ZT20-23 162.84550000000002 162.84550000000002 162.84550000000002