Based on prior knowledge, the number of pregnancies can be a crucial factor in determining whether a person has diabetes or not. Generally, higher number of pregnancies can be associated with an increased risk of developing gestational diabetes. However, it is important to note that the relationship between the number of pregnancies and diabetes can vary depending on various factors such as age, genetics, and lifestyle.

Here is the dictionary with the typical values of the "Pregnancies" feature for each target class:

```json
{
	"yes": [1.0, 2.0, 3.0, 4.0, 5.0],
	"no": [0.0, 2.0, 3.0, 6.0, 9.0]
}
```

For the target class "yes" (person has diabetes), typical values for the "Pregnancies" feature can be 1.0, 2.0, 3.0, 4.0, and 5.0.

For the target class "no" (person does not have diabetes), typical values for the "Pregnancies" feature can be 0.0, 2.0, 3.0, 6.0, and 9.0.
