condition mean min max ZT0-3 5012.0 5012.0 5012.0 ZT4-7 3373.1 3373.1 3373.1 ZT8-11 1935.5 1935.5 1935.5 ZT12-15 1209.35 1209.35 1209.35 ZT16-19 1562.85 1562.85 1562.85 ZT20-23 3223.9 3223.9 3223.9