condition mean min max ZT0-3 43.61455 43.61455 43.61455 ZT4-7 26.993850000000002 26.993850000000002 26.993850000000002 ZT8-11 19.58275 19.58275 19.58275 ZT12-15 21.69985 21.69985 21.69985 ZT16-19 32.692 32.692 32.692 ZT20-23 45.8491 45.8491 45.8491