Births by legitimacy

Year	Legitimate	Illegitimate
31 Dec 1911	778,485	35,037
31 Dec 1912	770,969	34,837
31 Dec 1913	778,770	35,264
31 Dec 1914	776,310	34,715
31 Dec 1915	715,757	33,528
31 Dec 1916	690,627	35,185
31 Dec 1917	579,051	34,776
31 Dec 1918	567,515	38,796
31 Dec 1919	598,322	39,168
31 Dec 1920	845,636	41,854
31 Dec 1922	689,651	31,762
31 Dec 1923	670,406	29,277
31 Dec 1924	644,482	28,109
31 Dec 1925	628,778	26,869
31 Dec 1926	614,386	27,540
31 Dec 1927	580,154	27,031
31 Dec 1928	587,581	27,784
31 Dec 1929	571,789	27,289
31 Dec 1930	577,191	27,679
31 Dec 1931	563,584	26,167
31 Dec 1932	547,809	25,290
31 Dec 1933	517,289	23,700
31 Dec 1934	533,572	24,114
31 Dec 1935	536,059	23,510
31 Dec 1936	543,940	23,443
31 Dec 1937	549,501	23,881
31 Dec 1938	558,662	24,917
31 Dec 1939	557,410	24,540
31 Dec 1940	543,344	24,366
31 Dec 1941	509,933	29,272
31 Dec 1942	573,940	34,433
31 Dec 1943	599,708	41,356
31 Dec 1944	652,588	52,160
31 Dec 1945	578,263	60,159
31 Dec 1946	721,880	51,274
31 Dec 1947	785,469	44,394
31 Dec 1948	688,579	39,552
31 Dec 1949	651,013	35,168
31 Dec 1950	620,813	33,508
31 Dec 1951	605,047	31,212
31 Dec 1952	601,409	30,938
31 Dec 1953	611,995	30,849
31 Dec 1954	603,194	30,201
31 Dec 1955	599,139	29,796
31 Dec 1956	627,353	32,067
31 Dec 1957	648,603	33,133
31 Dec 1963	750,176	56,841
31 Dec 1964	767,703	60,767
31 Dec 1965	752,850	63,583
31 Dec 1966	740,740	64,217
31 Dec 1967	721,531	66,927
31 Dec 1968	708,413	66,652
31 Dec 1969	690,398	64,058
31 Dec 1970	680,120	61,879
31 Dec 1971	677,489	62,610
31 Dec 1972	628,794	59,438
31 Dec 1973	582,708	55,089

Date:	Source:
1911 - 1920	Registrar General, Annual Report (HM Stationery Office) ,
1922 - 1973	Registrar General, Statistical Review (HM Stationery Office) ,

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