user
Instruction
Answer the question based on the provided table.


Table
Table Title: Masters M40 100 metres world record progression
Table Content:
| Hand | Auto | Wind | Athlete | Nationality | Birthdate | Location | Date |
| --- | --- | --- | --- | --- | --- | --- | --- |
|  | 10.26 | 2.3 | Troy Douglas | Netherlands | 30.11.1962 | Utrecht | 10.07.2004 |
|  | 10.29 | 1.9 | Troy Douglas | Netherlands | 30.11.1962 | Leiden | 07.06.2003 |
|  | 10.60 |  | Bill Collins | United States | 20.11.1950 |  | 06.06.1992 |
|  | 10.84 | 1.8 | Erik Oostweegel | Netherlands | 29.04.1960 | Tilburg | 10.06.2000 |
|  | 10.87 |  | Eddie Hart | United States | 24.04.1949 | Eugene | 03.08.1989 |
|  | 10.90 |  | Thaddeus Bell | United States | 28.11.1942 | Raleigh | 01.05.1988 |
|  | 10.93 | 0.6 | Gilles Echevin | France | 01.09.1948 | Grenoble | 07.05.1989 |
| 10.7 |  |  | Klaus Jürgen Schneider | Germany | 02.03.1942 | Stuttgart | 07.07.1982 |
| 10.7 |  |  | Walt Butler | United States | 21.03.1941 | Northridge | 16.05.1981 |
| 10.7 |  |  | Thane Baker | United States | 04.10.1931 | Elkhart | 13.09.1972 |
|  | 10.95 |  | George McNeill | United Kingdom | 19.02.1947 | Melbourne | 31.11.1987 |
|  | 10.95 |  | Karl Heinz Schröder | Germany | 17.06.1939 | Hannover | 28.07.1979 |


Question
what is the difference between the number of athletes from germany and the number of athletes from the united states?


Answer Format
The final answer should be concise and use the following format:
```json
{
    "answer": [
        "answer1",
        "answer2",
        ...
    ]
}
```
rule
["3"]