The bar chart given displays the ages of women who have give birth in 1966, 1986, and 2006 respectively.
Overall, the trend shows that the percentage of older women relative to the previous years of giving birth to their first child increases over the years.
In the year 1966, the majority (around 60%) of women give birth to their first born when they were 20-24 years old. The women aged 25-29 represents the second majority of around 38% followed by those 19 and under being 35%. This representation shows that most of the first child are given birth when the mother is aged 29 and younger. However, after two decades the majority of the women aged 25-29 represents just over 50% of the first child followed by those aged 24 and younger. This show the trend of the increase in age of mothers who gave birth to their first born.
Finally, this trend is solified by 2006 where the majority of the mother (just under 50%) are aged between 30-34 years old. This displays the ever-increasing mothers giving birth to their first child overtime
