condition mean min max ZT0-3 55.171466666666674 36.772400000000005 73.22300000000001 ZT4-7 58.0106 58.0106 58.0106 ZT8-11 82.12010000000001 82.12010000000001 82.12010000000001 ZT12-15 122.52074999999999 111.615 133.4265 ZT16-19 140.349 140.349 140.349 ZT20-23 117.10650000000001 117.10650000000001 117.10650000000001