condition mean min max ZT0-3 107.67218521250001 90.14363484 125.200735585 ZT4-7 147.41807597500002 130.05718945 164.7789625 ZT8-11 242.572552375 182.4000209 302.74508385 ZT12-15 390.79789062500004 381.5349742 400.06080705 ZT16-19 165.0164728 137.12368715000002 192.90925844999998 ZT20-23 95.1582202125 87.46028773 102.856152695