condition mean min max ZT0-3 13202.9 13202.9 13202.9 ZT4-7 15630.3 15630.3 15630.3 ZT8-11 14164.65 14164.65 14164.65 ZT12-15 9964.5 9964.5 9964.5 ZT16-19 8478.55 8478.55 8478.55 ZT20-23 9483.65 9483.65 9483.65