Based on prior knowledge, I will assume the following ranges for the diastolic blood pressure:

- Normal blood pressure range: 60-80 mmHg
- High blood pressure range: >80 mmHg

To analyze the relationship between the diastolic blood pressure feature and the presence of diabetes, we need a dataset with both feature and target variables. Without such data, we cannot determine which specific values of diastolic blood pressure are typically associated with the presence or absence of diabetes.

However, assuming we have a dataset, here is an example dictionary based on prior knowledge:

```json
{
	"yes": [75.0, 85.0, 80.0, 88.0, 76.0], 
	"no": [70.0, 78.0, 72.0, 82.0, 74.0]
}
```

In this example, the "yes" class represents individuals with diabetes, and the "no" class represents individuals without diabetes. The diastolic blood pressure values provided are just placeholders and do not reflect any real-world data.