condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.2284439635 0.171466397 0.28542153000000003 ZT8-11 0.7523144174999999 0.138884802 1.365744033 ZT12-15 0.5032857835 0.252933315 0.753638252 ZT16-19 0.1501201875 0.0 0.300240375 ZT20-23 0.0 0.0 0.0