condition mean min max ZT0-3 26.3138 23.90715 28.72045 ZT4-7 28.2828 28.2828 28.2828 ZT8-11 22.832250000000002 22.832250000000002 22.832250000000002 ZT12-15 0 0 0 ZT16-19 12.0396 12.0396 12.0396 ZT20-23 21.59235 21.59235 21.59235