condition mean min max ZT0-3 1618.01 1381.775 1854.245 ZT4-7 1706.025 1706.025 1706.025 ZT8-11 1949.305 1949.305 1949.305 ZT12-15 0 0 0 ZT16-19 2864.47 2864.47 2864.47 ZT20-23 1564.445 1564.445 1564.445