condition mean min max ZT0-3 14.524450000000002 14.524450000000002 14.524450000000002 ZT4-7 12.1387 12.1387 12.1387 ZT8-11 10.847255 10.847255 10.847255 ZT12-15 11.7111 11.7111 11.7111 ZT16-19 19.153 19.153 19.153 ZT20-23 16.05 16.05 16.05