condition mean min max ZT0-3 0.51436675 0.174176 0.8545575 ZT4-7 0.85864 0.85864 0.85864 ZT8-11 0.5219425 0.5219425 0.5219425 ZT12-15 0 0 0 ZT16-19 0.8573465 0.8573465 0.8573465 ZT20-23 0.6876125 0.6876125 0.6876125