Question: What is the most common cheese in Iceland?
About the article "Cheese", section "World production and consumption".

Candidate passages:
Worldwide, cheese is a major agricultural product.
According to the Food and Agricultural Organization of the United Nations, over 20 million metric tons of cheese were produced worldwide in 2011.
This is about three kilograms for each person on Earth.
The largest producer of cheese is the United States, accounting for 26% of world production, followed by Germany and France.
In the U.S., mozzarella and cheddar are by far the top cheese types.
Only Ireland, New Zealand, the Netherlands and Australia have a cheese production that is mainly export oriented: respectively 95%, 90%, 72%, and 65% of their cheese production is exported.
Only 35% of French production is exported.
The United States, the biggest world producer of cheese, is a marginal exporter, as most of its production is for the domestic market.
Emmental (used mainly as a cooking ingredient) and Camembert are the most common cheeses in France.
In Iceland, skyr is the most common cheese.
In Greece, feta accounts for three-quarters of this consumption.
In the U.S., the consumption of cheese is quickly increasing and has nearly tripled between 1970 and 2003.
The consumption per person has reached, in 2003, .
Mozzarella is United States's favorite cheese and accounts for nearly a third of its consumption, mainly because it is one of the main ingredients of pizza.
Mars Cheese Castle is a cheese shop in Kenosha, Wisconsin.
Located along Interstate 94, the shop is popular among Wisconsin visitors and has been called a "cheese landmark", "one of Wisconsin's most recognizable cheese stores", and "an icon for generations of I-94 travelers".
While the store is best known for its cheese, it also sells sausages and other foods as well as Wisconsin souvenirs such as cheesehead hats.
The store is the oldest cheese shop located at what the Milwaukee Journal Sentinel called "Wisconsin's most visible cheese interchange"; the junction of Interstate 94 and Wisconsin Highway 142 had three cheese shops until 2009 and still has two. 
Cheese on toast consists of toast, either buttered or not, with cheese on one side.
Further toppings are optional; the most basic being chopped onions (raw or grilled with the cheese), brown sauce or ketchup.
Pickled cucumber, Branston pickle, fried tomatoes, fried eggs, Worcestershire sauce and baked beans are also common.
Another common variation is to add something to the toast before applying the cheese, such as tomato, or a thin layer of spread Marmite, Vegemite (in Australia), cream spread, mustard or tomato ketchup.
Recipe books and internet articles tend to elaborate on the basics, adding ingredients and specifying accompaniments to make more interesting reading.
Consequently, published recipes seldom deal with the most basic form of the dish and frequently refer to the similar dish of Welsh rarebit as "posh cheese on toast".
Cheddar cheese is most commonly used for cheese on toast, as this is a particularly good cheese for toasting.
Lancashire dairies, in conjunction with a "National Cheese on Toast Day", have promoted Lancashire cheese as the best cheese to use.
In Scotland similar dishes are often referred to as roasted cheese or 'melted cheese', where the bread need not be toasted before applying the cheese. 
In Portugal kebabs are fairly recent.
The most common kebab in Portugal is served in thick pita bread.
Common ingredients are salad, onion, tomato, fresh cheese and sauce. 
  Kajmak  Kiselo Mleko, Buttermilk  Yogurt  Pavlaka, heavy soured cream ("smetana")  White cheese * Zlatar cheese * White cheese with walnuts from Babine, won the 2012 "best autochtonic cheese" award  Cream cheese  Kačkavalj yellow sheep milk cheese ("Caciocavallo") * Pirotski kačkavalj  Brined cheese * Feta, brined cheese of mostly sheep milk * Sirenje, brined cheese of goat, cow or sheep milk  Vlašić cheese ("Vlašićki sir")  Vurda, Sheep milk  Siraz, unpasteurized cow's milk cheese  Šar cheese, traditional sheep/cow milk hard cheese  Pule cheese, donkey milk cheese, which is the most expensive cheese in the world