Direction (1 - 3) :The following is a multiple bar chart showing men's and women's average daily earnings in certain industries. Study the chart and answer the questions given below.
Bar Chart  direction image

1.
In which year is the percentage increase in the average daily earnings of men over the preceding year, the maximum ?

2.
The difference between the average daily earnings of men and women over successive years :

3.
In which year is the ratio of men's average daily earnings to women's average daily earnings is the highest ?