condition mean min max ZT0-3 117.81 117.81 117.81 ZT4-7 123.9575 123.9575 123.9575 ZT8-11 71.04145 71.04145 71.04145 ZT12-15 61.5416 61.5416 61.5416 ZT16-19 69.8534 69.8534 69.8534 ZT20-23 95.08705 95.08705 95.08705