The Cayman Islands have for many years enjoyed a thriving economy with literally zero unemployment; which has created an extremely diverse population. Out of a population of 40,000 there are over 10,000 persons there on work permits. The tourism sector supplies thousands of jobs in the hotel and condo field, from managerial positions to simple room services and in all facets of the water sports industry, from dive instructors to submarine pilots. Also, the construction of new homes, hotels and condominium projects keep developers busy, and land sales increase almost every year. In order to keep pace with the development requires the importation of foreign labor.