The economy of Aruba is an open system, with tourism currently providing the largest percentage of the country's income. Because of tourism's rapid growth in the last 80 years, related industries like construction have also flourished in Aruba. Other primary industries include oil refining and storage, as well as offshore banking. Despite the island's low rainfall in the past year, the people have proven that Aruba's soil is full of nutrients and many crops do amazingly well in the soil. Many more locals have started participating more to horticulture, permaculture and agriculture. Creating a start to an internal economy. Aloe cultivation, livestock, and fishing also contribute to Aruba's economy. In addition, the country also exports art and collectibles, machinery, electrical equipment, and transport equipment. Aruba's small labor force and low unemployment rate have led to many unfilled job vacancies, despite sharp rises in wage rates in recent years.