Number and percentage of waypoints across AGL altitude intervals for ACAD cleaned dataset (n=966,912).

Table 4: Number and percentage of waypoints across AGL altitude intervals for ACAD cleaned dataset (n=966,912).

AGL altitude	Number of waypoints	Percentage of waypoints
0-500ft	25,771	2.7
501-1,000ft	302,807	31.3
1,001-1,500ft	390,694	40.4
1,501-2,000ft	87,286	9.0
2,001-2,500ft	52,369	5.4
2,501-3,000ft	43,089	4.5
3,001-3,500ft	25,631	2.7
3,501-4,000ft	15,158	1.6
4,001-4,500ft	16,134	1.7
4,501-5,000ft	7,973	0.8