Which business services are the most popular in the U.S.?

Business owners in the country have an estimated net worth of more than $1.6 trillion, with an estimated 1.7 million job openings nationwide.

The top 10 job titles that have the most vacancies are in business, healthcare, healthcare consulting, real estate, finance and education, according to the Census Bureau.

The U.N. Human Development Index measures economic opportunity for people in more than 80 countries.