condition mean min max ZT0-3 0.98033525 0.9758355 0.984835 ZT4-7 1.33226 1.33226 1.33226 ZT8-11 1.524605 1.524605 1.524605 ZT12-15 0 0 0 ZT16-19 1.3106499999999999 1.3106499999999999 1.3106499999999999 ZT20-23 0.7522835 0.7522835 0.7522835