"Figure 2: Percentage of women remaining childless by their 30th birthday and completion of childbearing, by year of birth of woman","" "","" "","" "Notes","1. The percentage of women remaining childless by age 30 and by completion of childbearing is calculated as 1 minus the proportion of women who have had at least one live birth by that age, multiplied by 100 2. This calculation takes into account all first live births from a woman's teenage years through to the last day she is 29 (the day before her 30th birthday) or the last day she is 45 (the day before her 46th birthday)" "Unit","%" "","" "Year of birthof woman","Percentage of women remaining childless by 30th birthday","Percentage of women by completion of childbearing" "1920","33","21" "1921","30","18" "1922","30","18" "1923","29","16" "1924","28","17" "1925","29","17" "1926","28","16" "1927","28","16" "1928","27","15" "1929","27","15" "1930","25","13" "1931","25","14" "1932","25","14" "1933","23","13" "1934","21","11" "1935","20","12" "1936","20","12" "1937","20","12" "1938","19","11" "1939","19","12" "1940","18","11" "1941","18","11" "1942","18","11" "1943","19","12" "1944","18","11" "1945","18","10" "1946","18","9" "1947","22","12" "1948","21","11" "1949","23","13" "1950","24","14" "1951","26","14" "1952","26","14" "1953","28","15" "1954","30","16" "1955","30","16" "1956","32","17" "1957","33","17" "1958","34","18" "1959","36","19" "1960","37","19" "1961","38","20" "1962","39","20" "1963","40","20" "1964","41","20" "1965","42","20" "1966","42","-" "1967","42","-" "1968","42","-" "1969","43","-" "1970","43","-" "1971","44","-" "1972","46","-" "1973","47","-" "1974","47","-" "1975","48","-" "1976","47","-" "1977","47","-" "1978","47","-" "1979","45","-" "1980","45","-" "1981","44","-"