condition mean min max ZT0-3 0.011063398 0.0 0.022126796 ZT4-7 0.0 0.0 0.0 ZT8-11 0.00631119725 0.0 0.0126223945 ZT12-15 0.010489683999999999 0.006280381 0.014698987 ZT16-19 0.0 0.0 0.0 ZT20-23 0.013168133500000002 0.0 0.026336267000000003