condition mean min max ZT0-3 2487.45 2487.45 2487.45 ZT4-7 1816.1 1816.1 1816.1 ZT8-11 1504.75 1504.75 1504.75 ZT12-15 2097.85 2097.85 2097.85 ZT16-19 2280.2 2280.2 2280.2 ZT20-23 2288.7 2288.7 2288.7