condition mean min max ZT0-3 90.71636666666666 73.07065 120.6785 ZT4-7 136.7815 136.7815 136.7815 ZT8-11 149.096 149.096 149.096 ZT12-15 94.4086 93.3245 95.4927 ZT16-19 103.56524999999999 103.56524999999999 103.56524999999999 ZT20-23 53.2324 53.2324 53.2324