condition mean min max ZT0-3 104.573 104.573 104.573 ZT4-7 78.16095 78.16095 78.16095 ZT8-11 13.337 13.337 13.337 ZT12-15 9.623525 9.623525 9.623525 ZT16-19 71.44905 71.44905 71.44905 ZT20-23 109.17685 109.17685 109.17685