Year
|
Years to double
|
Population
|
 |
 |
 |
-200,000
|
 |
10,000
|
-181,000
|
19,000
|
20,000
|
-162,000
|
19,000
|
40,000
|
-143,000
|
19,000
|
80,000
|
-124,000
|
19,000
|
160,000
|
-105,000
|
19,000
|
320,000
|
-86,000
|
19,000
|
640,000
|
-67,000
|
19,000
|
1,280,000
|
-48,000
|
19,000
|
2,560,000
|
-29,000
|
19,000
|
5,120,000
|
-10,000
|
19,000
|
10,000,000
|
-5,000
|
5,000
|
20,000,000
|
-3,000
|
2,000
|
50,000,000
|
-1,400
|
1,600
|
100,000,000
|
0
|
1,400
|
200,000,000
|
1,200
|
1,200
|
400,000,000
|
1,700
|
500
|
800,000,000
|
1,900
|
200
|
1,500,000,000
|
1,960
|
60
|
3,000,000,000
|
2,000
|
40
|
6,000,000,000
|
2,003
|
 |
6,300,000,000
|
 |
 |
 |
 |
 |
 |
|
 |