condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.060871982000000005 0.034508386999999995 0.08723557700000001 ZT8-11 0.01996646666666667 0.0 0.03993293333333334 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0