The bar chart illustrates the percentage of women giving birth to their first child in 2 decades (1966, 1986 and 2006).
Overall, The highest percentage of women giving birth to their child was dominated by age 19-24 at 1966 whereas the lowest percentage was held by over 40 years old at 1986. furthermore, the most significant difference of percentages was in 1986 between age 19-24 and all of ages.
from 1966 to 2006, percentage of age 19-24 and under 19 had decreased gradually which was age 19-24 from 60% to 28% similarly, and under 19 was approximately 33% to 12% similarly. Whereas age 30-34 increased gradually, but in 1986 to 2006 rocketed to the peak which was from below 20% to 45% .
The percentages of fluctuation were experienced by age 25- 30 and over 40. In 1986, woman who was in middle of fertile age level rised sharply from 35% to 50% and then slumped of about 38%. it was different compared by age over 40 that was fallen aprroximately 2% and then increased slightly to peaks approximately 5% in last decade.