condition mean min max ZT0-3 3938.5 3938.5 3938.5 ZT4-7 4755.9 4755.9 4755.9 ZT8-11 5310.1 5310.1 5310.1 ZT12-15 5818.15 5818.15 5818.15 ZT16-19 4542.6 4542.6 4542.6 ZT20-23 2933.65 2933.65 2933.65