condition mean min max ZT0-3 175.6475 148.4785 202.81650000000002 ZT4-7 179.375 179.375 179.375 ZT8-11 113.643 113.643 113.643 ZT12-15 0 0 0 ZT16-19 102.5544 102.5544 102.5544 ZT20-23 184.405 184.405 184.405