condition mean min max ZT0-3 105.733364 105.733364 105.733364 ZT4-7 103.6786075 103.6786075 103.6786075 ZT8-11 112.74705449999999 112.74705449999999 112.74705449999999 ZT12-15 120.984313 120.984313 120.984313 ZT16-19 127.8343185 127.8343185 127.8343185 ZT20-23 125.435471 125.435471 125.435471