condition mean min max ZT0-3 0.7330203333333334 0.6140095 0.8045180000000001 ZT4-7 0.7706735 0.7706735 0.7706735 ZT8-11 0.5699715000000001 0.5699715000000001 0.5699715000000001 ZT12-15 0.6202672499999999 0.5714665 0.669068 ZT16-19 0.7339835 0.7339835 0.7339835 ZT20-23 0.7881695 0.7881695 0.7881695