condition mean min max ZT0-3 162.25 162.25 162.25 ZT4-7 160.5 160.5 160.5 ZT8-11 81.4 81.4 81.4 ZT12-15 173.25 173.25 173.25 ZT16-19 205.3 205.3 205.3 ZT20-23 83.69999999999999 83.69999999999999 83.69999999999999