condition mean min max ZT0-3 77.71007832500001 67.8692687 87.55088795 ZT4-7 76.31502505 65.06290136 87.56714874000001 ZT8-11 183.0127645475 137.233775745 228.79175335 ZT12-15 112.45282335499999 52.11518898999999 172.79045771999998 ZT16-19 34.688776595 31.89254292 37.485010270000004 ZT20-23 26.6362592875 25.584203975 27.688314599999998