Number of Females to 100 Males., TABLE XI.—Number of Females to every 100 Males at each Age-period, at the last three Censuses.

Age-periods.	1861.		1870.		1881.
	Males.	Females.	Males.	Females.	Males.	Females.
All Ages	100.00	81.43	100.00	87.93	100.00	89.18
Under 1 year	100.00	92.28	100.00	94.64	100.00	100.39
1 - 2		100.99		102.79		105.48
2 - 5		95.97		99.48		94.41
5 - 10		100.32		96.50		96.79
10 - 15		97.04		100.49		95.23
15 - 20		115.78		106.01		99.46
20 - 30		119.98		115.94		95.92
30 - 40		70.76		105.56		93.94
40 - 50		51.48		67.51		95.51
50 - 60		40.52		51.18		68.49
60 - 70		36.21		39.04		52.50
70 - 80		35.82		39.14		41.62
80 - 90		25.32		33.62		40.05
90 and over		14.28		27.78		64.52
Not specified						31.51