Similarly to Finland, the industrialization has begun late in Sweden too. At the early 19th century 90% of Sweden's population have worked in the agriculture, only in the second half of the century has the industrialization began, based on the country's natural resources. Following the 2nd world war, Sweden has climbed to be amongst the world's biggest industrial giants. These days their agriculture isn't the least bit outstanding, only 10% of the Kingdom of Sweden is suitable for agricultural production. However, the country is rich in mineral resources, and it has been producing iron, copper, zinc and gold since the middle-ages. There are many large industrial companies in Sweden, mostly in the car and plane industry, and mechanical engineering.