condition mean min max ZT0-3 0.014206202250000001 0.0 0.028412404500000002 ZT4-7 0.13783304899999999 0.071903081 0.203763017 ZT8-11 0.273909811 0.145689569 0.402130053 ZT12-15 1.0160215367499998 0.7376480124999999 1.294395061 ZT16-19 0.693118492 0.6123642125 0.7738727715 ZT20-23 0.20847974125000002 0.088222489 0.3287369935