Consider the following data:
|
Year |
Birth rate |
Death rate |
|
1911-1921 |
48.1 |
35.5 |
|
1921-1931 |
16.4 |
36.3 |
|
1931-1941 |
45.2 |
31.2 |
|
1941-1951 |
39.9 |
27.4 |
|
1951-1961 |
41.7 |
22.8 |
|
1961-1971 |
41.1 |
18.9 |
|
1971-1981 |
37.1 |
14.8 |
For which period was the natural growth rate maximum?
1
1911-1921
2
1941-1951
3
1961-1971
4
1971-1981
5
Question Not Attempted