═════════╤═════╤═════╤═════╤═════╤═════╤═════╤═════╤═════╤═════╤═════╤═══════ │1880.│1881.│1882.│1883.│1884.│1885.│1886.│1887.│1888.│1889.│Ten-yr. │ │ │ │ │ │ │ │ │ │ │ av. ─────────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────── January │ 4.60│ 5.15│ 6.60│ 6.35│ 5.85│ 4.60│ 3.85│ 4.45│ 5.40│ 5.00│ 5.19 February │ 4.45│ 5.90│ 6.80│ 6.90│ 6.70│ 4.60│ 4.05│ 5.20│ 5.35│ 4.70│ 5.47 March │ 4.45│ 5.90│ 6.80│ 7.25│ 6.50│ 4.55│ 4.15│ 5.30│ 5.45│ 4.75│ 5.51 April │ 4.50│ 5.95│ 7.10│ 7.50│ 5.95│ 4.55│ 4.00│ 5.00│ 5.50│ 4.75│ 5.48 May │ 4.30│ 6.05│ 7.70│ 7.30│ 5.55│ 4.05│ 4.00│ 4.60│ 5.55│ 4.50│ 5.36 June │ 4.30│ 5.90│ 7.90│ 6.50│ 5.20│ 4.00│ 4.15│ 4.55│ 5.55│ 4.35│ 5.24 July │ 4.55│ 6.40│ 8.20│ 5.65│ 5.25│ 4.55│ 4.60│ 5.30│ 6.10│ 4.40│ 5.50 August │ 4.95│ 6.50│ 8.45│ 5.50│ 5.70│ 4.55│ 4.45│ 4.75│ 6.20│ 4.15│ 5.52 September│ 5.25│ 6.75│ 8.40│ 5.20│ 5.20│ 4.10│ 4.35│ 5.00│ 6.20│ 4.20│ 5.47 October │ 4.85│ 6.60│ 7.65│ 4.70│ 4.70│ 3.80│ 4.10│ 4.50│ 6.05│ 4.25│ 5.12 November │ 4.75│ 6.20│ 6.75│ 4.75│ 4.45│ 3.50│ 3.75│ 4.85│ 5.95│ 3.85│ 4.88 December │ 4.75│ 6.15│ 6.20│ 5.20│ 4.20│ 3.65│ 4.25│ 5.20│ 5.20│ 3.60│ 4.84 ─────────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────── Yearly │ 4.64│ 6.13│ 7.38│ 6.07│ 5.44│ 4.21│ 4.14│ 4.89│ 5.71│ 4.38│ 5.30 aver. │ │ │ │ │ │ │ │ │ │ │ ─────────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴───────