condition mean min max ZT0-3 1442.1 1442.1 1442.1 ZT4-7 3725.4 3725.4 3725.4 ZT8-11 5312.65 5312.65 5312.65 ZT12-15 6866.2 6866.2 6866.2 ZT16-19 3086.6499999999996 3086.6499999999996 3086.6499999999996 ZT20-23 1789.9 1789.9 1789.9