The bar graph illustrates the percentage of the population that smokes and the change in this percentage through the years 1950 to 1990. This has been demonstrated separately for both men and women.
When considering the women within the population who smoke, the graph points to the lowest rate to be in the year 1950. There occurs a gradual, followed by a steep increase that may be estimated to around 43% of the population in 1980 being women smokers. However, it is seen that there was a decrease by about 10% in the final year of the graph.
On the other hand, the percentage of men smokers was highest in the year 1950 standing at 80% of the population. Over the years, a slow decrease is witnessed in this rate till the year 1980, after which there was a sudden and sharp decrease in the percentage going from 70% to around 46% of the total number of people.
Overall, there has been an increase in the percentage of the female smoker population during the 40 year period and a decrease in the same for the male population. The proportion of male smokers always remained higher than that of the female smokers. 
The bar graph illustrates the  
percentage
 of the  
population
 that smokes and the  
change
 in this  
percentage
 through the years 1950 to 1990. This has  
been demonstrated
  separately
 for both  
men
 and women.
When considering the women within the  
population
 who smoke, the graph points to the lowest rate to be in the  
year
 1950. There occurs a gradual, followed by a steep increase that may  
be estimated
 to around 43% of the  
population
 in 1980 being women smokers.  
However
, it is  
seen
 that there was a  
decrease
 by about 10% in the final  
year
 of the graph. 
On the other hand
, the  
percentage
 of  
men
 smokers was highest in the  
year
 1950 standing at 80% of the  
population
. Over the years, a slow  
decrease
  is witnessed
 in this rate till the  
year
 1980, after which there was a sudden and sharp  
decrease
 in the  
percentage
 going from 70% to around 46% of the total number of  
people
. 
Overall
, there has been an increase in the  
percentage
 of the female smoker  
population
 during the 40  
year
 period and a  
decrease
 in the same for the male  
population
. The proportion of male smokers always remained higher than that of the female smokers.