condition mean min max ZT0-3 47.6224 44.5227 50.712900000000005 ZT4-7 56.1279 56.1279 56.1279 ZT8-11 44.23655 44.23655 44.23655 ZT12-15 57.818 39.9179 75.71809999999999 ZT16-19 46.71265 46.71265 46.71265 ZT20-23 50.360150000000004 50.360150000000004 50.360150000000004