condition mean min max ZT0-3 0.1507519475 0.14988431800000002 0.151619577 ZT4-7 0.28209748225 0.059869828 0.5043251365 ZT8-11 2.31142178225 1.5766473710000002 3.0461961935 ZT12-15 2.5754803995 2.491557087 2.659403712 ZT16-19 0.589911043 0.428195362 0.751626724 ZT20-23 0.15565177175 0.0961237295 0.215179814