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:
| Season | Appearance | Interchange | Tries | Goals | F/G | Points |
| --- | --- | --- | --- | --- | --- | --- |
| 2000(Bulldogs) | – | 1 | – | – | – | 0 |
| 2001(Bulldogs) | 21 | 3 | 13 | 1 | 1 | 55 |
| 2002(Bulldogs) | 17 | – | 10 | – | 2 | 42 |
| 2003(Bulldogs) | 19 | – | 8 | – | 2 | 34 |
| 2004(Bulldogs) | 25 | 1 | 8 | – | 2 | 34 |
| 2005(Bulldogs) | 23 | – | 11 | 1 | 3 | 49 |
| 2006(Roosters) | 16 | – | – | – | – | 0 |
| 2007(Roosters) | 19 | – | 5 | – | 2 | 22 |
| 2008(Roosters) | 25 | – | 11 | 5 | 1 | 55 |
| 2009(Roosters) | 14 | – | 5 | 6 | 1 | 33 |
| 2010(Roosters) | 27 | – | 9 | 2 | 1 | 41 |
| 2011(Roosters) | 24 | – | 2 | 41 | 1 | 91 |
| 2012(Roosters) | 22 | – | 4 | 62 | – | 140 |
| 2013(Tigers) | 16 | 2 | 1 | 4 | – | 12 |
Question:
how many appearances did he have in 2001?
Answer:
21