Consider two axially loaded columns, namely, 1 and 2, made of a linear elastic material with Yong's moduls 2×10^{5 }MPa, square cross-section with side 10 mm, and length 1 m. For coloumn 1 one end is fixed and is free Column 2, one end is fixed and the other end is pinned. Based on the Euler's theory the ratio (up to one decimal place) of the buckling load of column 2 to the buckling load of column 1 is _______________