condition mean min max ZT0-3 1851.75 1851.75 1851.75 ZT4-7 1169.1 1169.1 1169.1 ZT8-11 1983.05 1983.05 1983.05 ZT12-15 2813.8500000000004 2813.8500000000004 2813.8500000000004 ZT16-19 3028.55 3028.55 3028.55 ZT20-23 2478.0 2478.0 2478.0