condition mean min max ZT0-3 1497.0 1497.0 1497.0 ZT4-7 1286.4 1286.4 1286.4 ZT8-11 1306.75 1306.75 1306.75 ZT12-15 1157.4 1157.4 1157.4 ZT16-19 1538.7 1538.7 1538.7 ZT20-23 1441.95 1441.95 1441.95