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 | Majors | ATP wins | Total wins | Earnings ($) | Money list rank |
| --- | --- | --- | --- | --- | --- |
| 1997.0 | 0.0 | 0.0 | 0.0 | 305132.0 | 72.0 |
| 1998.0 | 0.0 | 5.0 | 5.0 | 1836233.0 | 9.0 |
| 1999.0 | 2.0 | 3.0 | 5.0 | 4269265.0 | 1.0 |
| 2000.0 | 1.0 | 0.0 | 1.0 | 1884443.0 | 6.0 |
| 2001.0 | 1.0 | 3.0 | 4.0 | 2091766.0 | 4.0 |
| 2002.0 | 0.0 | 5.0 | 5.0 | 2186006.0 | 3.0 |
| 2003.0 | 1.0 | 3.0 | 4.0 | 2530929.0 | 4.0 |
| 2004.0 | 0.0 | 1.0 | 1.0 | 1177254.0 | 9.0 |
| 2005.0 | 0.0 | 1.0 | 1.0 | 1629596.0 | 5.0 |
| 2006.0 | 0.0 | 0.0 | 0.0 | 156700.0 | 141.0 |
Question:
What was his money list rank in 2001? 
Answer:
4.0