condition mean min max ZT0-3 0.7342982499999999 0.64777 0.8208265 ZT4-7 0.4633475 0.4633475 0.4633475 ZT8-11 0.9695745 0.9695745 0.9695745 ZT12-15 0 0 0 ZT16-19 1.227665 1.227665 1.227665 ZT20-23 0.913529 0.913529 0.913529