condition mean min max ZT0-3 0.017542375 0.0 0.03508475 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0 0 0 ZT16-19 0.0708235 0.0708235 0.0708235 ZT20-23 0.0 0.0 0.0