condition mean min max ZT0-3 0.346812246 0.232241461 0.461383031 ZT4-7 0.362206904 0.16059434050000002 0.5638194675 ZT8-11 0.1523208785 0.1448358225 0.15980593450000002 ZT12-15 0.20385312 0.171737753 0.23596848699999998 ZT16-19 0.4495188415 0.339535165 0.559502518 ZT20-23 1.0569197725 0.7186785524999999 1.3951609925