Germany’s Frankfurt Airport, a European aviation hub, has seen an increase in passenger numbers and is optimistic about the full year, the Fraport airport operator reported on Thursday. In June, Fraport recorded a good 5.6 million passengers, 1.4% more than a year earlier, it announced in Frankfurt. This is in light of seasonal factors which affected the figures. The Whitsun holiday period took place in June of last year, boosting figures then, but occured in May of this year. The current monthly figure is still about 14.4% below the passenger numbers from the pre-pandemic period in June 2019….