condition mean min max ZT0-3 2252.7 2252.7 2252.7 ZT4-7 2932.6 2932.6 2932.6 ZT8-11 2840.4 2840.4 2840.4 ZT12-15 2672.2 2672.2 2672.2 ZT16-19 2359.3 2359.3 2359.3 ZT20-23 2103.5 2103.5 2103.5