Final answer:
Recent Chinese immigrants have had higher rates of emigration in recent years due to various reasons including economic opportunities.
Step-by-step explanation:
In recent years, the group of people that has had higher rates of emigration are recent Chinese immigrants seeking gold in California. Since the question does not specify a particular time period, this answer focuses on the recent years. According to the given information, more people from Asian countries, specifically China, have been entering the United States for various reasons, including economic opportunities.