condition mean min max ZT0-3 0.69532025 0.6241114999999999 0.766529 ZT4-7 1.27491 1.27491 1.27491 ZT8-11 1.4353 1.4353 1.4353 ZT12-15 0 0 0 ZT16-19 1.6099999999999999 1.6099999999999999 1.6099999999999999 ZT20-23 1.105265 1.105265 1.105265