condition mean min max ZT0-3 14.7618 13.9531 15.5705 ZT4-7 10.454180000000001 10.454180000000001 10.454180000000001 ZT8-11 10.064309999999999 10.064309999999999 10.064309999999999 ZT12-15 0 0 0 ZT16-19 14.6583 14.6583 14.6583 ZT20-23 16.34115 16.34115 16.34115