condition mean min max ZT0-3 0.79251375 0.5347500000000001 1.0502775 ZT4-7 114.7858 114.7858 114.7858 ZT8-11 166.202 166.202 166.202 ZT12-15 0 0 0 ZT16-19 16.6143 16.6143 16.6143 ZT20-23 6.648645 6.648645 6.648645