Table 5: Number and percentage of waypoints across MSL altitude intervals for ACAD cleaned dataset (981,166).

MSL altitude

Number of waypoints

Percentage of waypoints

0-500ft

23,790

2.4

501-1,000ft

293,682

29.9

1,001-1,500ft

396,995

40.5

1,501-2,000ft

88,888

9.1

2,001-2,500ft

50,569

5.2

2,501-3,000ft

43,726

4.5

3,001-3,500ft

28,066

2.9

3,501-4,000ft

14,944

1.5

4,001-4,500ft

16,610

1.7

4,501-5,000ft

9,215

0.9

5,001-5,500ft

4,207

0.4

5,501-6,000ft

10,474

1.1