condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0 0.0 0.0 ZT8-11 0.08376600000000001 0.08376600000000001 0.08376600000000001 ZT12-15 0.009021225 0.0 0.01804245 ZT16-19 0.0 0.0 0.0 ZT20-23 0 0 0