The chart provides data on the average age of women in Australia when they gave birth to their first child in 1966, 1986, and 2006.
Overall, younger girls experienced a downward trend, while women in their early thirties showed an upward trend throughout the period. All four of them statistics is changed over the period.
The 19-24 age group accounted for 60% of total of information but the number of women who gave birth to their first child decreased rapidly to the end of the period. In 1966, 33% of women had their first child under the age of 19. This figure dropped doubled every 20 years.
Percentage of giving birth in age 30-34 was less than age 25-30 between 1966 and 1986, although in 2006 this statistic was changed by women in age 30-34. The age of women over 40 stayed the same percent over a 30-year period. In 1966, the percentage of women who are 34-39 changed every 20 years and at the end of the period it changed by 30%
