condition mean min max ZT0-3 127.78744999999999 103.47435 155.39999999999998 ZT4-7 94.04495 94.04495 94.04495 ZT8-11 92.71525 92.71525 92.71525 ZT12-15 205.52075 186.8395 224.202 ZT16-19 181.2755 181.2755 181.2755 ZT20-23 174.0055 174.0055 174.0055