condition mean min max ZT0-3 76.27073 76.27073 76.27073 ZT4-7 80.379368 80.379368 80.379368 ZT8-11 107.1367215 107.1367215 107.1367215 ZT12-15 87.150555 87.150555 87.150555 ZT16-19 113.961554 113.961554 113.961554 ZT20-23 108.476379 108.476379 108.476379