The pie chart shows proportions of women ages in Australia when they give their first birth in three different times.
Overall, women whose ages between 19 and 30 years recorded the highest proportion in all periods, women over 40 years old accounted the lowest ratio.
In the year 1966 women whose ages between 19 and 24 years were high given their first birth than the other groups, which they recorded more than 60 percent, with a big gap there were women whose ages between 25 and 30 years, and women aged under 19 with nearly 35 percent for both of them. The other groups percentages were under 15.
After 20 years the situation had changed, which the group between 19 and 24 decreased sharply to 35 percent in the second place behind group 25 to 30 age that rose to 50 percent. The other categories were ringing between 10 and 20 percent, while those whose ages over 40 accounted the lowest level at 2 percent.
The year 2006 shows different trends compared to previously periods, which the group 30, 34 years old jumped to the first place at 45 percent while women aged 25 to 30 years who gives their first birth declined to the second place at 38 percent. The same direction took group 24, 30 years, which decreased to 27 percent. In contrast the group 34, 39 years old increased significantly to 30 percent, while group over 40 years old remained low at 4 percent.