condition mean min max ZT0-3 0.551566 0.4628125 0.6403195 ZT4-7 0.1671383 0.1671383 0.1671383 ZT8-11 0.10188610000000001 0.10188610000000001 0.10188610000000001 ZT12-15 0 0 0 ZT16-19 0.563223 0.563223 0.563223 ZT20-23 0.23302499999999998 0.23302499999999998 0.23302499999999998