condition mean min max ZT0-3 0.0057455 0.0057455 0.0057455 ZT4-7 0.0079345 0.0079345 0.0079345 ZT8-11 0.0064787 0.0064787 0.0064787 ZT12-15 0.0237376 0.0237376 0.0237376 ZT16-19 0.0416956 0.0416956 0.0416956 ZT20-23 0.02754305 0.02754305 0.02754305