Return of Arrivals and Departures by Sea, between 1st April, 1870, and 3rd April, 1881.

Date.	Arrivals.		Departures.		Excess of Arrivals over Departures.		Excess of Departure over Arrivals.
	Males.	Females.	Males.	Females.	Males.	Females.	Males.	Females.
1870	213	55	247	56			34	1
1871	247	73	343	136			96	63
1872	251	69	316	103			65	34
1873	228	57	492	147			264	90
1874	481	179	449	152	32	27
1875	516	217	397	123	119	94
1876	515	212	495	155	20	57
1877	407	206	422	153		53	15
1878	226	96	326	145			100	49
1879	144	70	172	106			28	36
1880	330	247	581	196		51	251
1881	149	65	145	66	4			1
	3,707	1,546	4,385	1,538	175	282	853	274