Sort a given list of countries in terms of population from least to greatest.
According to the United Nations' estimates for 2021, the populations of the given countries, listed in ascending order, are as follows:

1. Indonesia - 276,361,783
2. United States - 331,002,651
3. India - 1,366,417,754
4. China - 1,439,323,776
Indonesia, United States, China, India
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.

### Instruction:
Sort a given list of countries in terms of population from least to greatest.

### Input:
Indonesia, United States, China, India

### Response:
According to the United Nations' estimates for 2021, the populations of the given countries, listed in ascending order, are as follows:

1. Indonesia - 276,361,783
2. United States - 331,002,651
3. India - 1,366,417,754
4. China - 1,439,323,776