condition mean min max ZT0-3 0.20541057575 0.0 0.4108211515 ZT4-7 0.0 0.0 0.0 ZT8-11 0.111292195 0.0 0.22258439 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0