condition mean min max ZT0-3 102.621147 102.621147 102.621147 ZT4-7 110.25601499999999 110.25601499999999 110.25601499999999 ZT8-11 128.4678495 128.4678495 128.4678495 ZT12-15 147.2273185 147.2273185 147.2273185 ZT16-19 153.895036 153.895036 153.895036 ZT20-23 156.51698299999998 156.51698299999998 156.51698299999998