condition mean min max ZT0-3 94.58855 94.58855 94.58855 ZT4-7 73.9817 73.9817 73.9817 ZT8-11 65.10679999999999 65.10679999999999 65.10679999999999 ZT12-15 73.4371 73.4371 73.4371 ZT16-19 98.86425 98.86425 98.86425 ZT20-23 102.88125 102.88125 102.88125