condition mean min max ZT0-3 304.01087 304.01087 304.01087 ZT4-7 142.003051 142.003051 142.003051 ZT8-11 105.99277000000001 105.99277000000001 105.99277000000001 ZT12-15 118.9918855 118.9918855 118.9918855 ZT16-19 92.528219 92.528219 92.528219 ZT20-23 118.5465785 118.5465785 118.5465785