condition mean min max ZT0-3 106.1322451925 86.00456038499999 126.25993000000001 ZT4-7 68.5913531075 64.014431465 73.16827475 ZT8-11 58.572383165 56.142026494999996 61.002739835 ZT12-15 45.1800968925 42.522860765000004 47.83733302 ZT16-19 57.1261823725 52.51242738 61.739937364999996 ZT20-23 79.705089535 72.69097701999999 86.71920205