Is comment metadata included in the export file?

My latest export from my blog (WP 3.3.1) now has the commentmeta in the XML. It’s in this format:

        <wp:comment>
        <wp:comment_id>...</wp:comment_id>
        ...
        <wp:comment_user_id>0</wp:comment_user_id>
        **<wp:commentmeta>
            <wp:meta_key>name_of_meta</wp:meta_key>
            <wp:meta_value><![CDATA[value_of_meta]]></wp:meta_value>
        </wp:commentmeta>**
    </wp:comment>

I was looking for information on it while trying to write an exporter from another system. Not much information available online so I tried an export from a well-used blog–it was there!