I forget the population of KL, but I understand KL is the largest city in Malaysia， if there are 3 million people in KL， and if one person twice a year let KL by plane， there would be 6 million people left KL by plane. On the other hand， there are 20 million tourist every year， if half left by plane there will be 10 million. Total around 16 million people left Kuala Lumpur by plane.