Complex sentence: The airport's terminal building opened in 1967 and was designed to handle just 60,000 passengers per year, in 2014 343,572 people flew in and out of New Plymouth making it the 9th busiest airport in the country.
Split into simpler sentences: The airport's terminal building opened in 1967 and was designed to handle just 60,000 passengers per year. In 2014 343,572 people flew in and out of New Plymouth making it the 9th busiest airport in the country.