condition mean min max ZT0-3 0.68595025 0.6600415 0.711859 ZT4-7 0.9003829999999999 0.9003829999999999 0.9003829999999999 ZT8-11 1.255725 1.255725 1.255725 ZT12-15 0 0 0 ZT16-19 0.8258654999999999 0.8258654999999999 0.8258654999999999 ZT20-23 0.7114510000000001 0.7114510000000001 0.7114510000000001