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:
| Year | GDP at constant prices (THB trillions) | GDP at constant prices growth rate (percent change) | GDP at current prices (USD billions) | Export volume of goods and services (percent change) | Current account balance (percent of GDP) |
| --- | --- | --- | --- | --- | --- |
| 1995.0 | 2.941 | 9.2 | 168.019 | 15.4 | -7.9 |
| 1996.0 | 3.115 | 5.9 | 181.948 | -5.5 | -7.9 |
| 1997.0 | 3.072 | -1.4 | 150.891 | 7.2 | -2.0 |
| 1998.0 | 2.749 | -10.5 | 111.860 | 8.2 | 12.8 |
| 1999.0 | 2.871 | 4.4 | 122.630 | 9.0 | 10.2 |
| 2000.0 | 3.008 | 4.8 | 122.725 | 17.5 | 7.6 |
| 2001.0 | 3.073 | 2.2 | 115.536 | -4.2 | 4.4 |
| 2002.0 | 3.237 | 5.3 | 126.877 | 12.0 | 3.7 |
| 2003.0 | 3.467 | 7.1 | 142.640 | 7.0 | 3.4 |
| 2004.0 | 3.686 | 6.3 | 161.340 | 9.6 | 1.7 |
| 2005.0 | 3.856 | 4.6 | 176.352 | 4.1 | -4.3 |
| 2006.0 | 4.054 | 5.1 | 207.089 | 12.5 | 1.2 |
Question:
What is the GDP at constant prices for a current account balance of 12.8?
Answer:
2.749