user
Instruction
Answer the question based on the provided table.


Table
Table Title: Demographics of Bhutan
Table Content:
| Period | Live births per year | Deaths per year | Natural change per year | CBR1 | CDR1 | NC1 | TFR1 | IMR1 |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1950-1955 | 9 000 | 5 000 | 4 000 | 47.9 | 27.1 | 20.8 | 6.67 | 184.8 |
| 1955-1960 | 10 000 | 6 000 | 5 000 | 49.0 | 26.8 | 22.3 | 6.67 | 181.4 |
| 1960-1965 | 12 000 | 6 000 | 6 000 | 48.5 | 25.7 | 22.8 | 6.67 | 174.1 |
| 1965-1970 | 13 000 | 7 000 | 7 000 | 47.8 | 24.1 | 23.8 | 6.67 | 163.1 |
| 1970-1975 | 16 000 | 7 000 | 8 000 | 47.0 | 22.0 | 25.1 | 6.67 | 149.3 |
| 1975-1980 | 18 000 | 8 000 | 10 000 | 45.8 | 19.6 | 26.2 | 6.67 | 133.2 |
| 1980-1985 | 20 000 | 8 000 | 12 000 | 42.7 | 17.1 | 25.6 | 6.39 | 117.1 |
| 1985-1990 | 21 000 | 8 000 | 13 000 | 40.4 | 15.0 | 25.3 | 6.11 | 104.0 |
| 1990-1995 | 19 000 | 7 000 | 12 000 | 35.2 | 12.5 | 22.7 | 5.27 | 87.5 |
| 1995-2000 | 16 000 | 5 000 | 11 000 | 29.2 | 9.9 | 19.3 | 4.13 | 69.7 |
| 2000-2005 | 15 000 | 5 000 | 11 000 | 25.2 | 7.9 | 17.2 | 3.30 | 52.8 |
| 2005-2010 | 15 000 | 5 000 | 10 000 | 21.5 | 7.2 | 14.4 | 2.61 | 44.4 |


Question
how many deaths occurred per year on average in 1975-1980?


Answer Format
The final answer should be concise and use the following format:
```json
{
    "answer": [
        "answer1",
        "answer2",
        ...
    ]
}
```
rule
["8000"]