condition mean min max ZT0-3 33.53345 33.53345 33.53345 ZT4-7 25.362807500000002 25.362807500000002 25.362807500000002 ZT8-11 21.902991999999998 21.902991999999998 21.902991999999998 ZT12-15 361.0605005 361.0605005 361.0605005 ZT16-19 65.866482 65.866482 65.866482 ZT20-23 336.926326 336.926326 336.926326