condition mean min max ZT0-3 10473.78306 10473.78306 10473.78306 ZT4-7 11586.23206 11586.23206 11586.23206 ZT8-11 11059.268254999999 11059.268254999999 11059.268254999999 ZT12-15 10356.2258465 10356.2258465 10356.2258465 ZT16-19 10518.548475 10518.548475 10518.548475 ZT20-23 10361.793549999999 10361.793549999999 10361.793549999999