Based on the feature description, the fnlwgt represents the number of units in the target population that the responding unit represents. This feature does not provide direct information about the income level of the individual. Therefore, it is not possible to analyze the relationship between fnlwgt and the target variable (earning more than $50000 per year) without considering additional features.

However, to generate a dictionary as requested, we can randomly select integer values for fnlwgt for each target class. Keep in mind that these values are randomly selected and do not represent any actual relationship or insights between the feature and the target variable.

```json
{
    "no": [10000, 20000, 30000, 40000, 50000],
    "yes": [60000, 70000, 80000, 90000, 100000]
}
```

Please note that these values are only for illustrative purposes and do not reflect any real relationship between fnlwgt and the task of determining if a person earns more than $50000 per year.