Include keys in the ViewResult<T>.Items method by changing RawValues to RawRows. Originally, this method only deserialized the value of each row, but in some cases it can be useful to include the key as well. Then, in your data model you can include the following lines to find out what the key is of a document:

public class Country
{
    [JsonProperty("key")]
    public string Name { get; set; }
    ...