condition mean min max ZT0-3 93.715805 93.715805 93.715805 ZT4-7 78.0145225 78.0145225 78.0145225 ZT8-11 93.2669465 93.2669465 93.2669465 ZT12-15 96.92438200000001 96.92438200000001 96.92438200000001 ZT16-19 148.298249 148.298249 148.298249 ZT20-23 136.76774699999999 136.76774699999999 136.76774699999999