condition mean min max ZT0-3 71.6164 46.56675 89.99755 ZT4-7 41.761799999999994 41.761799999999994 41.761799999999994 ZT8-11 28.53435 28.53435 28.53435 ZT12-15 39.80805 32.4174 47.1987 ZT16-19 52.271 52.271 52.271 ZT20-23 68.34649999999999 68.34649999999999 68.34649999999999