═════════╤═════╤═════╤═════╤═════╤═════╤═════╤═════╤═════╤═════╤═════╤═══════ │1870.│1871.│1872.│1873.│1874.│1875.│1876.│1877.│1878.│1879.│Ten-yr. │ │ │ │ │ │ │ │ │ │ │ av. ─────────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────── January │ 9.05│ 6.60│ 4.35│ 3.85│ 5.20│ 6.60│ 7.15│ 6.45│ 4.05│ 2.90│ 5.62 February │ 9.00│ 7.30│ 4.45│ 4.20│ 5.35│ 6.95│ 7.95│ 6.15│ 3.90│ 3.70│ 5.90 March │ 8.55│ 6.75│ 4.45│ 4.95│ 5.30│ 7.50│ 8.55│ 5.50│ 3.70│ 3.95│ 5.92 April │ 8.80│ 5.60│ 4.25│ 5.40│ 5.50│ 8.25│ 8.05│ 5.55│ 3.55│ 3.70│ 5.87 May │ 8.75│ 4.55│ 4.05│ 4.90│ 5.50│ 7.90│ 7.15│ 5.30│ 3.30│ 3.50│ 5.49 June │ 8.60│ 3.80│ 3.90│ 4.45│ 5.55│ 7.00│ 6.05│ 4.85│ 3.50│ 3.75│ 5.15 July │ 9.00│ 4.40│ 4.05│ 4.55│ 6.05│ 7.05│ 7.00│ 4.95│ 4.10│ 3.60│ 5.48 August │ 9.50│ 4.40│ 4.65│ 4.60│ 6.90│ 7.75│ 6.15│ 5.05│ 4.25│ 3.40│ 5.67 September│ 9.30│ 4.45│ 4.90│ 4.50│ 7.25│ 8.00│ 6.00│ 5.30│ 3.95│ 3.45│ 5.71 October │ 7.90│ 4.30│ 4.60│ 4.30│ 6.00│ 7.95│ 5.90│ 5.35│ 3.45│ 3.60│ 5.34 November │ 6.85│ 4.00│ 4.25│ 3.85│ 6.50│ 7.30│ 5.75│ 4.70│ 2.95│ 3.85│ 5.00 December │ 6.15│ 4.15│ 3.75│ 4.70│ 6.85│ 6.95│ 5.95│ 4.25│ 2.70│ 4.55│ 5.00 ─────────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────── Yearly │ 8.46│ 5.03│ 4.31│ 4.53│ 6.00│ 7.44│ 6.81│ 5.29│ 3.62│ 3.67│ 5.51 aver. │ │ │ │ │ │ │ │ │ │ │ ─────────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴───────