Mean	Std. Dev.	Min.	Max.	Observations
Domestic flights	overall	$\mathrm{3,102}$	$\mathrm{3,724}$	$3$	$\mathrm{14,880}$	$N=\mathrm{1,900}$
	between		$\mathrm{3,681}$	$66$	$\mathrm{12,037}$	$n=9$
	within		$\mathrm{1,262}$	$-\mathrm{7,161}$	$\mathrm{6,687}$	T-bar $=211$
International flights	overall	$\mathrm{4,176}$	$\mathrm{3,813}$	$43$	$\mathrm{17,995}$	$N=\mathrm{1,989}$
	between		$\mathrm{3,603}$	$858$	$\mathrm{10,421}$	$n=9$
	within		$\mathrm{1,731}$	$-\mathrm{3,659}$	$\mathrm{11,864}$	$T=221$