Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Region | Total Population | Hindus | % of Hindus | % of Hindu total |
| --- | --- | --- | --- | --- |
| Central Asia | 92019166.0 | 149644.0 | 0.163% | 0.016% |
| East Asia | 1527960261.0 | 130631.0 | 0.009% | 0.014% |
| Middle East | 274775527.0 | 792872.0 | 0.289% | 0.084% |
| South Asia | 1437326682.0 | 1006888651.0 | 70.05% | 98.475% |
| Southeast Asia | 571337070.0 | 6386614.0 | 1.118% | 0.677% |
Question:
What is the highest number where the portion of observers is 0.163%?
Answer:
149644.0