condition mean min max ZT0-3 466.15 466.15 466.15 ZT4-7 409.1 409.1 409.1 ZT8-11 318.2 318.2 318.2 ZT12-15 425.65 425.65 425.65 ZT16-19 422.4 422.4 422.4 ZT20-23 463.4 463.4 463.4