condition mean min max ZT0-3 63.332274999999996 59.65345 67.0111 ZT4-7 169.946 169.946 169.946 ZT8-11 237.312 237.312 237.312 ZT12-15 0 0 0 ZT16-19 77.7836 77.7836 77.7836 ZT20-23 68.94380000000001 68.94380000000001 68.94380000000001