1915 1 5.16000 1915 2 5.34000 1915 3 5.28000 1915 4 5.25000 1915 5 5.35000 1915 6 5.40000 1915 7 5.47000 1915 8 5.53000 1915 9 5.52000 1915 10 5.23000 1915 11 5.01000 1915 12 5.05000 1916 1 5.07000 1916 2 5.09000 1916 3 5.10000 1916 4 5.17000 1916 5 5.13000 1916 6 5.14000 1916 7 5.19000 1916 8 5.21000 1916 9 5.21000 1916 10 5.10000 1916 11 5.05000 1916 12 5.09000 1917 1 4.99000 1917 2 5.14000 1917 3 5.16000 1917 4 5.29000 1917 5 5.46000 1917 6 5.52000 1917 7 5.54000 1917 8 5.58000 1917 9 5.73000 1917 10 5.81000 1917 11 6.12000 1917 12 6.23000 1918 1 6.20000 1918 2 6.14000 1918 3 6.23000 1918 4 6.19000 1918 5 6.09000 1918 6 6.11000 1918 7 6.14000 1918 8 6.13000 1918 9 6.28000 1918 10 6.01000 1918 11 5.57000 1918 12 5.63000 1919 1 5.77000 1919 2 5.84000 1919 3 5.90000 1919 4 5.96000 1919 5 5.80000 1919 6 5.82000 1919 7 5.93000 1919 8 6.16000 1919 9 6.23000 1919 10 6.12000 1919 11 6.37000 1919 12 6.59000 1920 1 6.48000 1920 2 6.76000 1920 3 6.66000 1920 4 7.01000 1920 5 7.24000 1920 6 7.16000 1920 7 7.18000 1920 8 7.05000 1920 9 6.70000 1920 10 6.37000 1920 11 6.57000 1920 12 6.92000 1921 1 6.57000 1921 2 6.68000 1921 3 6.76000 1921 4 6.76000 1921 5 6.68000 1921 6 6.88000 1921 7 6.66000 1921 8 6.55000 1921 9 6.38000 1921 10 6.37000 1921 11 6.08000 1921 12 5.92000 1922 1 5.84000 1922 2 5.84000 1922 3 5.71000 1922 4 5.54000 1922 5 5.49000 1922 6 5.56000 1922 7 5.47000 1922 8 5.33000 1922 9 5.34000 1922 10 5.46000 1922 11 5.67000 1922 12 5.69000 1923 1 5.73000 1923 2 5.77000 1923 3 5.93000 1923 4 5.93000 1923 5 5.91000 1923 6 5.88000 1923 7 5.91000 1923 8 5.90000 1923 9 5.99000 1923 10 6.03000 1923 11 5.99000 1923 12 5.94000 1924 1 5.85000 1924 2 5.82000 1924 3 5.81000 1924 4 5.75000 1924 5 5.66000 1924 6 5.52000 1924 7 5.44000 1924 8 5.44000 1924 9 5.43000 1924 10 5.38000 1924 11 5.33000 1924 12 5.36000 1925 1 5.32000 1925 2 5.26000 1925 3 5.30000 1925 4 5.27000 1925 5 5.16000 1925 6 5.14000 1925 7 5.21000 1925 8 5.26000 1925 9 5.20000 1925 10 5.21000 1925 11 5.15000 1925 12 5.11000 1926 1 5.05000 1926 2 4.99000 1926 3 5.02000 1926 4 4.92000 1926 5 4.88000 1926 6 4.87000 1926 7 4.91000 1926 8 4.93000 1926 9 4.92000 1926 10 4.92000 1926 11 4.86000 1926 12 4.85000 1927 1 4.79000 1927 2 4.80000 1927 3 4.78000 1927 4 4.74000 1927 5 4.72000 1927 6 4.76000 1927 7 4.75000 1927 8 4.68000 1927 9 4.65000 1927 10 4.59000 1927 11 4.55000 1927 12 4.52000 1928 1 4.51000 1928 2 4.51000 1928 3 4.50000 1928 4 4.55000 1928 5 4.60000 1928 6 4.74000 1928 7 4.81000 1928 8 4.94000 1928 9 4.85000 1928 10 4.88000 1928 11 4.81000 1928 12 4.89000 1929 1 4.92000 1929 2 4.99000 1929 3 5.06000 1929 4 5.05000 1929 5 5.06000 1929 6 5.09000 1929 7 5.09000 1929 8 5.18000 1929 9 5.15000 1929 10 5.04000 1929 11 4.99000 1929 12 4.84000 1930 1 4.86000 1930 2 4.84000 1930 3 4.76000 1930 4 4.74000 1930 5 4.73000 1930 6 4.71000 1930 7 4.70000 1930 8 4.60000 1930 9 4.53000 1930 10 4.57000 1930 11 4.66000 1930 12 4.83000 1931 1 4.62000 1931 2 4.63000 1931 3 4.62000 1931 4 4.76000 1931 5 4.85000 1931 6 5.10000 1931 7 4.98000 1931 8 5.65000 1931 9 6.24000 1931 10 7.08000 1931 11 7.54000 1931 12 10.2300 1932 1 8.60000 1932 2 8.42000 1932 3 8.59000 1932 4 11.6500 1932 5 14.6500 1932 6 15.1100 1932 7 14.5900 1932 8 10.9100 1932 9 10.8500 1932 10 13.4300 1932 11 14.3000 1932 12 16.5300 1933 1 15.4100 1933 2 15.8900 1933 3 16.7200 1933 4 17.6100 1933 5 13.0700 1933 6 6.75000 1933 7 6.03000 1933 8 6.09000 1933 9 6.42000 1933 10 6.85000 1933 11 7.58000 1933 12 6.98000 1934 1 6.21000 1934 2 5.62000 1934 3 5.56000 1934 4 5.41000 1934 5 5.57000 1934 6 5.60000 1934 7 5.72000 1934 8 6.19000 1934 9 6.44000 1934 10 6.20000 1934 11 6.30000 1934 12 6.19000 1935 1 6.09000 1935 2 6.43000 1935 3 7.29000 1935 4 7.40000 1935 5 7.32000 1935 6 7.01000 1935 7 7.14000 1935 8 7.07000 1935 9 7.20000 1935 10 7.80000 1935 11 7.03000 1935 12 6.67000 1936 1 5.97000 1936 2 5.47000 1936 3 5.38000 1936 4 5.66000 1936 5 5.68000 1936 6 5.53000 1936 7 5.37000 1936 8 5.14000 1936 9 4.95000 1936 10 4.81000 1936 11 4.86000 1936 12 4.85000 1937 1 4.83000 1937 2 4.86000 1937 3 5.00000 1937 4 5.25000 1937 5 5.30000 1937 6 5.43000 1937 7 5.45000 1937 8 5.71000 1937 9 6.22000 1937 10 7.18000 1937 11 8.48000 1937 12 8.47000 1938 1 9.46000 1938 2 9.53000 1938 3 10.5700 1938 4 11.3100 1938 5 10.4800 1938 6 13.0900 1938 7 10.2300 1938 8 . 1938 9 . 1938 10 . 1938 11 . 1938 12 .