condition mean min max ZT0-3 10.4680875 10.012575 10.9236 ZT4-7 12.0092 12.0092 12.0092 ZT8-11 16.86325 16.86325 16.86325 ZT12-15 0 0 0 ZT16-19 13.76845 13.76845 13.76845 ZT20-23 13.3574 13.3574 13.3574