condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0 0.0 0.0 ZT8-11 0.1370932295 0.0 0.274186459 ZT12-15 0.319114275 0.1280203385 0.5102082115000001 ZT16-19 0.2475955745 0.0 0.495191149 ZT20-23 0.0 0.0 0.0