user
Instruction
Answer the question based on the provided table.


Table
Table Title: 1971 Trans-AMA motocross series
Table Content:
| Place | Rider | Country | Team | Points | Wins |
| --- | --- | --- | --- | --- | --- |
| 1 | Sylvain Geboers | Belgium | Suzuki | 3066 | 3 |
| 2 | Adolf Weil | Germany | Maico | 2331 | 2 |
| 3 | Torlief Hansen | Sweden | Husqvarna | 2052 | 0 |
| 4 | Roger De Coster | Belgium | Suzuki | 1865 | 3 |
| 5 | Joel Robert | Belgium | Suzuki | 1730 | 1 |
| 6 | Heikki Mikkola | Finland | Husqvarna | 1680 | 2 |
| 7 | Willy Bauer | Germany | Maico | 1276 | 0 |
| 8 | Gaston Rahier | Belgium | ČZ | 1112 | 0 |
| 9 | Pierre Karsmakers | Netherlands | Husqvarna | 1110 | 0 |
| 10 | Dave Bickers | United Kingdom | ČZ | 1076 | 0 |
| 11 | John Banks | United Kingdom | ČZ | 971 | 0 |
| 12 | Andy Roberton | United Kingdom | Husqvarna | 810 | 0 |
| 13 | Vlastimil Valek | Czechoslovakia | ČZ | 709 | 0 |
| 14 | Mark Blackwell | United States | Husqvarna | 604 | 0 |
| 15 | Brad Lackey | United States | ČZ | 603 | 0 |
| 16 | Gary Jones | United States | Yamaha | 439 | 0 |
| 17 | John DeSoto | United States | Suzuki | 425 | 0 |
| 18 | Chris Horsefield | United Kingdom | ČZ | 416 | 0 |
| 19 | Uno Palm | Sweden | Husqvarna | 324 | 0 |
| 20 | Peter Lamppu | United States | Montesa | 309 | 0 |


Question
what is the number of riders who scored at least 1000 points?


Answer Format
The final answer should be concise and use the following format:
```json
{
    "answer": [
        "answer1",
        "answer2",
        ...
    ]
}
```
rule
["10"]