The chart provides data about the age of females giving their first child in Australia between 1966 and 2006. Overall, although the percentage of females in the over-30 age groups having their first child witnessed an increase and ranked first in the final year, there was a decrease in the figure for females under 24 .
Looking at the over 30 age groups, the percentage of women in these groups giving their first baby witnessed an increasing trend. The data of females between 30 and 39 started at nearly 10 percent in 1966. Both these figures had a significant rise to nearly 50 percent and approximately 30 percent respectively in 2006. Meanwhile, the proportion of women who were over 40 years old was below 5 percent, then increased to over 5 percent in the final year.
In the under 30 year old groups, the percentage of first-time mothers between 20 and 24 years old recorded over 60 percent and became the highest figure in the beginning year of the period. This was followed by the data of adults in the 25-29 age groups and teenagers, with nearly 40 percent and around 35 percent in that order. From 1966 onwards, the figure for women between 25 and 29 years old witnessed an increasing trend and reached its peak in 1986, then decreased to over 40 percent in the final year. In contrast, there was a downward trend of the proportion of women in under 24 age groups to 30 percent and over 10 percent in 2006, each in turn.