Kerala is known as "God's Own Country" and has a well-developed tourism sector focused on its natural beauty and cultural diversity. It has the highest literacy rate and sex ratio in India. Kerala receives the largest foreign remittances in the country and ranks second on the Investment Climate Index. The state has a strong agricultural sector and is the largest producer of crops like rubber, pepper, and coconut. It also has a growing knowledge-based industry and was the first state to have a technology park with CMMI level 4 certification.