condition mean min max ZT0-3 700.25 700.25 700.25 ZT4-7 2995.6 2995.6 2995.6 ZT8-11 2097.95 2097.95 2097.95 ZT12-15 1486.65 1486.65 1486.65 ZT16-19 801.7 801.7 801.7 ZT20-23 388.55 388.55 388.55