condition mean min max ZT0-3 125.80238874999998 102.5019708 149.10280669999997 ZT4-7 162.358327675 150.9606855 173.75596984999999 ZT8-11 250.424318675 214.35372095000002 286.49491639999997 ZT12-15 402.9019069 372.62316065 433.18065315 ZT16-19 346.46815949999996 314.6379919 378.2983271 ZT20-23 231.87170357499997 213.7445392 249.99886794999998