condition mean min max ZT0-3 288.17150000000004 287.5465 288.79650000000004 ZT4-7 245.9315 245.9315 245.9315 ZT8-11 162.107 162.107 162.107 ZT12-15 0 0 0 ZT16-19 223.589 223.589 223.589 ZT20-23 286.577 286.577 286.577