This data may help with infinite scrolling
function( siteId ) {
		return {
			totalViewers: _totalViewers[ siteId ] || 0,
			fetchingViewers: _fetchingViewers[ siteId ],
			currentViewersPage: _viewersCurrentPage[ siteId ],
			numViewersFetched: _numViewersFetched[ siteId ],
		};
	}