Quarter	Marks (Average Per Quarter)
1889-01-01	3.06000
1889-04-01	3.31000
1889-07-01	3.57000
1889-10-01	3.69000
1890-01-01	4.00000
1890-04-01	4.06000
1890-07-01	3.94000
1890-10-01	3.93000
1891-01-01	4.00000
1891-04-01	4.05000
1891-07-01	4.06000
1891-10-01	4.23000
1892-01-01	4.06000
1892-04-01	3.92000
1892-07-01	3.80000
1892-10-01	3.71000
1893-01-01	3.76000
1893-04-01	3.71000
1893-07-01	3.69000
1893-10-01	3.72000
1894-01-01	3.72000
1894-04-01	3.70000
1894-07-01	3.75000
1894-10-01	3.75000
1895-01-01	3.72000
1895-04-01	3.72000
1895-07-01	3.75000
1895-10-01	3.79000
1896-01-01	3.82000
1896-04-01	3.85000
1896-07-01	3.91000
1896-10-01	4.01000
1897-01-01	4.14000
1897-04-01	4.26000
1897-07-01	4.41000
1897-10-01	4.46000
1898-01-01	4.44000
1898-04-01	4.49000
1898-07-01	4.60000
1898-10-01	4.67000
1899-01-01	4.72000
1899-04-01	4.78000
1899-07-01	4.90000
1899-10-01	4.95000
1900-01-01	5.04000
1900-04-01	5.14000
1900-07-01	5.25000
1900-10-01	5.27000
1901-01-01	5.08000
1901-04-01	5.02000
1901-07-01	4.97000
1901-10-01	4.84000
1902-01-01	4.66000
1902-04-01	4.52000
1902-07-01	4.55000
1902-10-01	4.54000
1903-01-01	4.55000
1903-04-01	4.58000
1903-07-01	4.70000
1903-10-01	4.74000
1904-01-01	4.76000
1904-04-01	4.76000
1904-07-01	4.79000
1904-10-01	4.79000
1905-01-01	4.77000
1905-04-01	4.81000
1905-07-01	4.86000
1905-10-01	4.88000
1906-01-01	5.02000
1906-04-01	5.14000
1906-07-01	5.38000
1906-10-01	5.60000
1907-01-01	5.74000
1907-04-01	5.90000
1907-07-01	6.09000
1907-10-01	6.14000
1908-01-01	5.94000
1908-04-01	5.85000
1908-07-01	5.89000
1908-10-01	5.77000
1909-01-01	5.42000
1909-04-01	5.28000
1909-07-01	5.31000
1909-10-01	5.30000
1910-01-01	5.29000
1910-04-01	5.33000
1910-07-01	5.40000
1910-10-01	5.45000
1911-01-01	5.49000
1911-04-01	5.51000
1911-07-01	5.58000
1911-10-01	5.63000
1912-01-01	5.74000
1912-04-01	5.97000
1912-07-01	6.12000
1912-10-01	6.21000
1913-01-01	6.35000
1913-04-01	6.50000
1913-07-01	6.56000
1913-10-01	6.47000
1914-01-01	6.25000
1914-04-01	6.19000
1914-07-01	6.08000
1914-10-01	6.13000
1915-01-01	6.36000
1915-04-01	6.66000
1915-07-01	7.04000
1915-10-01	7.29000
1916-01-01	7.62000
1916-04-01	8.05000
1916-07-01	8.50000
1916-10-01	8.88000
1917-01-01	9.33000
1917-04-01	10.0000
1917-07-01	10.7000
1917-10-01	11.5100
1918-01-01	12.1600
1918-04-01	12.6100
1918-07-01	13.2800
1918-10-01	14.5200
1919-01-01	18.0500
1919-04-01	19.5300
1919-07-01	23.0100
1919-10-01	27.6600
1920-01-01	39.3800
1920-04-01	54.8900
1920-07-01	60.4700
1920-10-01	70.2700