condition mean min max ZT0-3 11000.4 11000.4 11000.4 ZT4-7 13738.4 13738.4 13738.4 ZT8-11 13767.85 13767.85 13767.85 ZT12-15 12527.849999999999 12527.849999999999 12527.849999999999 ZT16-19 12314.349999999999 12314.349999999999 12314.349999999999 ZT20-23 12052.15 12052.15 12052.15