Month	Marks
1877-10-01	20.4525
1877-11-01	20.4575
1877-12-01	20.4180
1878-01-01	20.4000
1878-02-01	20.3900
1878-03-01	20.4100
1878-04-01	20.4200
1878-05-01	20.3988
1878-06-01	20.3740
1878-07-01	20.3700
1878-08-01	20.4570
1878-09-01	20.4925
1878-10-01	20.4775
1878-11-01	20.4620
1878-12-01	20.4825
1879-01-01	20.4613
1879-02-01	20.4225
1879-03-01	20.4860
1879-04-01	20.4613
1879-05-01	20.4220
1879-06-01	20.4375
1879-07-01	20.4525
1879-08-01	20.4800
1879-09-01	20.4550
1879-10-01	20.3575
1879-11-01	20.3380
1879-12-01	20.3450
1880-01-01	20.3380
1880-02-01	20.4100
1880-03-01	20.4850
1880-04-01	20.4600
1880-05-01	20.4560
1880-06-01	20.4725
1880-07-01	20.4800
1880-08-01	20.4950
1880-09-01	20.4350
1880-10-01	20.4060
1880-11-01	20.3650
1880-12-01	20.3950
1881-01-01	20.3920
1881-02-01	20.4825
1881-03-01	20.4925
1881-04-01	20.4760
1881-05-01	20.4725
1881-06-01	20.4725
1881-07-01	20.4820
1881-08-01	20.4875
1881-09-01	20.4450
1881-10-01	20.4250
1881-11-01	20.4025
1881-12-01	20.4000
1882-01-01	20.4075
1882-02-01	20.4550
1882-03-01	20.4650
1882-04-01	20.4360
1882-05-01	20.4350
1882-06-01	20.4375
1882-07-01	20.4400
1882-08-01	20.4525
1882-09-01	20.4510
1882-10-01	20.4063
1882-11-01	20.3600
1882-12-01	20.3440
1883-01-01	20.3550
1883-02-01	20.4375
1883-03-01	20.4350
1883-04-01	20.4375
1883-05-01	20.4825
1883-06-01	20.5000
1883-07-01	20.4925
1883-08-01	20.5000
1883-09-01	20.4600
1883-10-01	20.3888
1883-11-01	20.3475
1883-12-01	20.3700
1884-01-01	20.3813
1884-02-01	20.4550
1884-03-01	20.4860
1884-04-01	20.4350
1884-05-01	20.4260
1884-06-01	20.4488
1884-07-01	20.4238
1884-08-01	20.4100
1884-09-01	20.3825
1884-10-01	20.3775
1884-11-01	20.4180
1884-12-01	20.4500
1885-01-01	20.4660
1885-02-01	20.4975
1885-03-01	20.5050
1885-04-01	20.4575
1885-05-01	20.4230
1885-06-01	20.3750
1885-07-01	20.3600
1885-08-01	20.3770
1885-09-01	20.3588
1885-10-01	20.3300
1885-11-01	20.3338
1885-12-01	20.3350
1886-01-01	20.3750
1886-02-01	20.4075
1886-03-01	20.4038
1886-04-01	20.4038
1886-05-01	20.4110
1886-06-01	20.3663
1886-07-01	20.3730
1886-08-01	20.3913
1886-09-01	20.4000
1886-10-01	20.3860
1886-11-01	20.4000
1886-12-01	20.3775
1887-01-01	20.3810
1887-02-01	20.3825
1887-03-01	20.3863
1887-04-01	20.3590
1887-05-01	20.3688
1887-06-01	20.3550
1887-07-01	20.3600
1887-08-01	20.4075
1887-09-01	20.4525
1887-10-01	20.4000
1887-11-01	20.3613
1887-12-01	20.3440
1888-01-01	20.3500
1888-02-01	20.3538
1888-03-01	20.3480
1888-04-01	20.3588
1888-05-01	20.3863
1888-06-01	20.3780
1888-07-01	20.4175
1888-08-01	20.4650
1888-09-01	20.4600
1888-10-01	20.4325
1888-11-01	20.3588
1888-12-01	20.3820
1889-01-01	20.3880
1889-02-01	20.4288
1889-03-01	20.4670
1889-04-01	20.4538
1889-05-01	20.4600
1889-06-01	20.4450
1889-07-01	20.4350
1889-08-01	20.4600
1889-09-01	20.4675
1889-10-01	20.4250
1889-11-01	20.3590
1889-12-01	20.3463
1890-01-01	20.4213
1890-02-01	20.4563
1890-03-01	20.4030
1890-04-01	20.3575
1890-05-01	20.3490
1890-06-01	20.3400
1890-07-01	20.4075
1890-08-01	20.4240
1890-09-01	20.3700
1890-10-01	20.3475
1890-11-01	20.3610
1890-12-01	20.3300
1891-01-01	20.3310
1891-02-01	20.3525
1891-03-01	20.3575
1891-04-01	20.3713
1891-05-01	20.4510
1891-06-01	20.3925
1891-07-01	20.3450
1891-08-01	20.3200
1891-09-01	20.3313
1891-10-01	20.3100
1891-11-01	20.3350
1891-12-01	20.3200
1892-01-01	20.3470
1892-02-01	20.3975
1892-03-01	20.4100
1892-04-01	20.4238
1892-05-01	20.4050
1892-06-01	20.3800
1892-07-01	20.3970
1892-08-01	20.4075
1892-09-01	20.3788
1892-10-01	20.3550
1892-11-01	20.3513
1892-12-01	20.3380
1893-01-01	20.3588
1893-02-01	20.4175
1893-03-01	20.4288
1893-04-01	20.4160
1893-05-01	20.4725
1893-06-01	20.4150
1893-07-01	20.3850
1893-08-01	20.4525
1893-09-01	20.3700
1893-10-01	20.3250
1893-11-01	20.3213
1893-12-01	20.3320
1894-01-01	20.3900
1894-02-01	20.3763
1894-03-01	20.4340
1894-04-01	20.4175
1894-05-01	20.4075
1894-06-01	20.3900
1894-07-01	20.3825
1894-08-01	20.3900
1894-09-01	20.3570
1894-10-01	20.3550
1894-11-01	20.3800
1894-12-01	20.3920
1895-01-01	20.4088
1895-02-01	20.4613
1895-03-01	20.4530
1895-04-01	20.4625
1895-05-01	20.4675
1895-06-01	20.4370
1895-07-01	20.4375
1895-08-01	20.4570
1895-09-01	20.4325
1895-10-01	20.4313
1895-11-01	20.4630
1895-12-01	20.4313
1896-01-01	20.4600
1896-02-01	20.4610
1896-03-01	20.4563
1896-04-01	20.4500
1896-05-01	20.4340
1896-06-01	20.3950
1896-07-01	20.3850
1896-08-01	20.3920
1896-09-01	20.3900
1896-10-01	20.3750
1896-11-01	20.3850
1896-12-01	20.3713
1897-01-01	20.3940
1897-02-01	20.4250
1897-03-01	20.4050
1897-04-01	20.3900
1897-05-01	20.3870
1897-06-01	20.3700
1897-07-01	20.3640
1897-08-01	20.3750
1897-09-01	20.3925
1897-10-01	20.3430
1897-11-01	20.3525
1897-12-01	20.3663
1898-01-01	20.3950
1898-02-01	20.4400
1898-03-01	20.4863
1898-04-01	20.5280
1898-05-01	20.5025
1898-06-01	20.4163
1898-07-01	20.3940
1898-08-01	20.4050
1898-09-01	20.4038
1898-10-01	20.4390
1898-11-01	20.4538
1898-12-01	20.4350
1899-01-01	20.4313
1899-02-01	20.4200
1899-03-01	20.4200
1899-04-01	20.4280
1899-05-01	20.4450
1899-06-01	20.4456
1899-07-01	20.4650
1899-08-01	20.4913
1899-09-01	20.4596
1899-10-01	20.4825
1899-11-01	20.4513
1899-12-01	20.5120
1900-01-01	20.5025
1900-02-01	20.5144
1900-03-01	20.4920
1900-04-01	20.5063
1900-05-01	20.5088
1900-06-01	20.4390
1900-07-01	20.4550
1900-08-01	20.4900
1900-09-01	20.4690
1900-10-01	20.4625
1900-11-01	20.4488
1900-12-01	20.4230
1901-01-01	20.4550
1901-02-01	20.4863
1901-03-01	20.4540
1901-04-01	20.4313
1901-05-01	20.4588
1901-06-01	20.4255
1901-07-01	20.4075
1901-08-01	20.4400
1901-09-01	20.4163
1901-10-01	20.3850
1901-11-01	20.4275
1901-12-01	20.4125
1902-01-01	20.4225
1902-02-01	20.4556
1902-03-01	20.4730
1902-04-01	20.4738
1902-05-01	20.4885
1902-06-01	20.4775
1902-07-01	20.4719
1902-08-01	20.4820
1902-09-01	20.4725
1902-10-01	20.4619
1902-11-01	20.4560
1902-12-01	20.4481
1903-01-01	20.4710
1903-02-01	20.4969
1903-03-01	20.5100
1903-04-01	20.5069
1903-05-01	20.4755
1903-06-01	20.4144
1903-07-01	20.3869
1903-08-01	20.3830
1903-09-01	20.3813
1903-10-01	20.4130
1903-11-01	20.4488
1903-12-01	20.4425
1904-01-01	20.4630
1904-02-01	20.5044
1904-03-01	20.4538
1904-04-01	20.4495
1904-05-01	20.4131
1904-06-01	20.4081
1904-07-01	20.4250
1904-08-01	20.4644
1904-09-01	20.4288
1904-10-01	20.3705
1904-11-01	20.3638
1904-12-01	20.3781
1905-01-01	20.4356
1905-02-01	20.4869
1905-03-01	20.4813
1905-04-01	20.4840
1905-05-01	20.4794
1905-06-01	20.4800
1905-07-01	20.4680
1905-08-01	20.4681
1905-09-01	20.4400
1905-10-01	20.4544
1905-11-01	20.4419
1905-12-01	20.4000
1906-01-01	20.4531
1906-02-01	20.5025
1906-03-01	20.4870
1906-04-01	20.4888
1906-05-01	20.5063
1906-06-01	20.4910
1906-07-01	20.4719
1906-08-01	20.4719
1906-09-01	20.4530
1906-10-01	20.4763
1906-11-01	20.5219
1906-12-01	20.5010
1907-01-01	20.5006
1907-02-01	20.5188
1907-03-01	20.5180
1907-04-01	20.4638
1907-05-01	20.4594
1907-06-01	20.4620
1907-07-01	20.4563
1907-08-01	20.4940
1907-09-01	20.4656
1907-10-01	20.4894
1907-11-01	20.5570
1907-12-01	20.5288
1908-01-01	20.4981
1908-02-01	20.4835
1908-03-01	20.4475
1908-04-01	20.4338
1908-05-01	20.4175
1908-06-01	20.3956
1908-07-01	20.3913
1908-08-01	20.4025
1908-09-01	20.4031
1908-10-01	20.4183
1908-11-01	20.4588
1908-12-01	20.4656
1909-01-01	20.4865
1909-02-01	20.5131
1909-03-01	20.4919
1909-04-01	20.4556
1909-05-01	20.4490
1909-06-01	20.4388
1909-07-01	20.4380
1909-08-01	20.4444
1909-09-01	20.4144
1909-10-01	20.4445
1909-11-01	20.4725
1909-12-01	20.4663
1910-01-01	20.4575
1910-02-01	20.4613
1910-03-01	20.4513
1910-04-01	20.4940
1910-05-01	20.5019
1910-06-01	20.4756
1910-07-01	20.4500
1910-08-01	20.4550
1910-09-01	20.4444
1910-10-01	20.4635
1910-11-01	20.4875
1910-12-01	20.4485
1911-01-01	20.4681
1911-02-01	20.4731
1911-03-01	20.4488
1911-04-01	20.4505
1911-05-01	20.4531
1911-06-01	20.4331
1911-07-01	20.4535
1911-08-01	20.4813
1911-09-01	20.4760
1911-10-01	20.5000
1911-11-01	20.4681
1911-12-01	20.4520
1912-01-01	20.4988
1912-02-01	20.5050
1912-03-01	20.4625
1912-04-01	20.4775
1912-05-01	20.4638
1912-06-01	20.4535
1912-07-01	20.4756
1912-08-01	20.4730
1912-09-01	20.4525
1912-10-01	20.4994
1912-11-01	20.5110
1912-12-01	20.4431
1913-01-01	20.4750
1913-02-01	20.4881
1913-03-01	20.4505
1913-04-01	20.4775
1913-05-01	20.4540
1913-06-01	20.4331
1913-07-01	20.4631
1913-08-01	20.4585
1913-09-01	20.4250
1913-10-01	20.4675
1913-11-01	20.5050
1913-12-01	20.4944
1914-01-01	20.4940
1914-02-01	20.4488
1914-03-01	20.4369
1914-04-01	20.4531
1914-05-01	20.4905
1914-06-01	20.5013
1914-07-01	20.5006