condition mean min max ZT0-3 0.022733075 0.0227178 0.02274835 ZT4-7 0.04635775 0.04635775 0.04635775 ZT8-11 0.022506 0.022506 0.022506 ZT12-15 0 0 0 ZT16-19 0.04486015 0.04486015 0.04486015 ZT20-23 0.0898061 0.0898061 0.0898061