condition mean min max ZT0-3 0.43152875 0.312878 0.5501795 ZT4-7 0.519147 0.519147 0.519147 ZT8-11 0.802867 0.802867 0.802867 ZT12-15 0 0 0 ZT16-19 0.6150675000000001 0.6150675000000001 0.6150675000000001 ZT20-23 0.791002 0.791002 0.791002