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93
From Table IVa. we find that, while the birth-rates of
the Hanover Square and Mayfair Sub-Districts are lower,
that of the Belgravia Sub-District is higher than in recent
years; that the death-rates of all the Sub-Districts are lower
than usual, although those for Hanover Square and
Belgravia are somewhat higher than they were last year;
and that the death-rate for Mayfair is even lower than those
previously recorded, being only 11.79 per thousand per
annum.
From the birth-rates and death-rates in thexabove Table
I have calculated the mean duration of life in the Parish
and in each of the Sub-Districts during the year 1881,
and find them to be as follows:—
Mean Duration of Life.
Hanover Square Sub-District 57.01
Mayfair „ 66.20
Belgravia „ 46.35
Whole Parish 50.26
The mean duration of life in this Parish, during the last
7 years, has been as follows:—
In 1875 it was 46.67 years.
„ 1876 „ 47.96 „
„ 1877 „ 49.52 „
„ 1878 „ 48.03 „
„ 1879 „ 48.55 „
„ 1880 „ 58.01 „
„ 1881 „ 50-26 „
So that the average mean duration of life in this Parish,
during those 7 years, has been almost exactly 50 years.
The mean duration of life in London, during the last
4 years, has been, according to my calculations, as follows:—
In 1878 it was 34-24 years.
„ 1879 „ 34.23 „
„ 1880 „ 35.17 „
„ 1881 „ 35.87 „