condition mean min max ZT0-3 0.00956241875 0.0 0.0191248375 ZT4-7 0.00864016325 0.0 0.0172803265 ZT8-11 0.44018191649999994 0.0349684845 0.8453953484999999 ZT12-15 4.370530471 2.7131538555000003 6.0279070865 ZT16-19 2.546594785 2.1304853054999997 2.9627042645 ZT20-23 0.56338104325 0.4355143555 0.691247731