Have we been visited by all the countries in the world?

In our previous reports of countries that we have been visited by, we have been working from the numbers from this website.  This was perhaps a bad assessment of the quality of information that a website provides by me, not something that I advocate in these days of the necessity to scrutinise any information that you find on the web.  However, having now looked at the United Nations list of members we realise that they have only 193 members listed.  So with our google analytics telling us that we have been visited by 193 countries does this mean that we have been visited by all the countries in the world!? If we have really done it, that’s amazing!!