Spent a short while earlier in the week updating one of the Better World Detectives resources on Iceland to reflect some recent changes and statistics. You can download these resources (for KS3 and KS4) from the website.
Apparently over 2.3 million tourists visited Iceland last year.
One country which is sending quite a lot more visitors to Iceland is Poland. This is perhaps partly due to the large number of Poles who live in the country.
You can find all the latest statistics on Icelandic tourism in this report here (PDF download)