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:
| Team | Constructor | Motorcycle | Tyres | No | Rider | Rounds |
| --- | --- | --- | --- | --- | --- | --- |
| Camel Yamaha Team | Yamaha | Yamaha YZR-M1 | M | 5 | Colin Edwards | All |
| Camel Yamaha Team | Yamaha | Yamaha YZR-M1 | M | 46 | Valentino Rossi | All |
| Konica Minolta Honda | Honda | Honda RC211V | M | 6 | Makoto Tamada | All |
| Tech 3 Yamaha | Yamaha | Yamaha YZR-M1 | D | 7 | Carlos Checa | All |
| Tech 3 Yamaha | Yamaha | Yamaha YZR-M1 | D | 77 | James Ellison | All |
| Team Roberts | Team Roberts | KR211V | M | 10 | Kenny Roberts, Jr. | All |
| Ducati Marlboro Team | Ducati | Ducati Desmosedici GP6 | B | 15 | Sete Gibernau | 1–7, 10–11, 13–16 |
| Ducati Marlboro Team | Ducati | Ducati Desmosedici GP6 | B | 65 | Loris Capirossi | All |
| Ducati Marlboro Team | Ducati | Ducati Desmosedici GP6 | B | 66 | Alex Hofmann | 8–9, 12 |
| Ducati Marlboro Team | Ducati | Ducati Desmosedici GP6 | B | 12 | Troy Bayliss | 17 |
| Kawasaki Racing Team | Kawasaki | Kawasaki Ninja ZX-RR | B | 17 | Randy de Puniet | All |
| Kawasaki Racing Team | Kawasaki | Kawasaki Ninja ZX-RR | B | 56 | Shinya Nakano | All |
| Kawasaki Racing Team | Kawasaki | Kawasaki Ninja ZX-RR | B | 8 | Naoki Matsudo | 15 |
| Rizla Suzuki MotoGP | Suzuki | Suzuki GSV-R | B | 21 | John Hopkins | All |
| Rizla Suzuki MotoGP | Suzuki | Suzuki GSV-R | B | 71 | Chris Vermeulen | All |
| Rizla Suzuki MotoGP | Suzuki | Suzuki GSV-R | B | 64 | Kousuke Akiyoshi | 15 |
| Repsol Honda Team | Honda | Honda RC211V | M | 26 | Dani Pedrosa | All |
| Repsol Honda Team | Honda | Honda RC211V | M | 69 | Nicky Hayden | All |
| Honda LCR | Honda | Honda RC211V | M | 27 | Casey Stoner | All |
| Pramac d'Antin MotoGP | Ducati | Ducati Desmosedici GP5 | D | 30 | José Luis Cardoso | All |
| Pramac d'Antin MotoGP | Ducati | Ducati Desmosedici GP5 | D | 66 | Alex Hofmann | 1–7, 10–11, 13–17 |
| Pramac d'Antin MotoGP | Ducati | Ducati Desmosedici GP5 | D | 22 | Iván Silva | 8–9, 12 |
| Fortuna Honda | Honda | Honda RC211V | M | 24 | Toni Elías | 1–8, 10–17 |
| Fortuna Honda | Honda | Honda RC211V | M | 33 | Marco Melandri | All |
| Fortuna Honda | Honda | Honda RC211V | M | 84 | Michel Fabrizio | 9 |
| Ilmor SRT | Ilmor | Ilmor X3 | M | 8 | Garry McCoy | 16–17 |
Question:
what are the number of times yamaha is the constructor?
Answer:
2