Based on the information provided, Germany achieved the best economic performance from the 1920s until 1937.
Firstly, Germany experienced significant industrial growth during this period, largely due to the implementation of the Dawes Plan in 1924, which stabilized its economy and encouraged foreign investment.
Secondly, the country witnessed a decrease in unemployment rates as new job opportunities arose in various sectors, helping to rebuild the workforce.
Lastly, Germany's rearmament program in the mid-1930s stimulated production and fueled economic recovery, positioning the nation as a formidable economic power in Europe by the late 1930s.