condition mean min max ZT0-3 9242.1675 4296.975 14187.36 ZT4-7 6644.99 6644.99 6644.99 ZT8-11 4413.07 4413.07 4413.07 ZT12-15 7904.61875 6229.8875 9579.35 ZT16-19 7926.578333333334 7296.6 8556.556666666667 ZT20-23 0 0 0