Global air passenger traffic increased by 6.1% in 2015, according to a preliminary report released by Airports Council International (ACI).
Both international and domestic airlines worldwide experienced a significant growth in passenger volumes.
International air passenger figures saw an annual rise of 6.2%, while domestic air passenger traffic increased by 6.1% annually.
Passenger volumes in 2015 reached the pre-recessionary growth levels as was recorded in 2004-07, despite weak economic growth estimated at 3.1%.
All regions, except Africa, experienced a significant growth in passenger traffic in 2015.
The minimum growth is recorded as 5% in Europe and a maximum of 11.3% in the Middle East, while Africa faced a decline of 0.1% in its passenger volume.
Air freight traffic has been comparatively weaker than the passenger volumes with a marginal rise of 2.3% in total freight, with 2.5% up in international freight and 1.8% up in domestic freight.
The rapid fall in imports and exports from China is a primary cause for the decreased rate in global freight traffic.
While all other regions exhibited a marginal growth in freight volume in 2015, the Middle East enjoyed a steep rise of 10.7%.
Latin America-Caribbean was the only region that demonstrated negative figures of -0.4% in terms of air freight in the month of December, while it witnessed a very weak rise of 1.2% in the total freight volume for the 12 months of the year.