condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.53699 0.53699 0.53699 ZT8-11 0.53647 0.53647 0.53647 ZT12-15 0 0 0 ZT16-19 1.039285 1.039285 1.039285 ZT20-23 1.57026 1.57026 1.57026