condition mean min max ZT0-3 0.3157755 0.25509550000000003 0.3764555 ZT4-7 0.6664855000000001 0.6664855000000001 0.6664855000000001 ZT8-11 1.142535 1.142535 1.142535 ZT12-15 0 0 0 ZT16-19 0.3459595 0.3459595 0.3459595 ZT20-23 0.397135 0.397135 0.397135