のようなYouTubeチャンネル Federal Aviation Administration


29,500 3.79%

52,200 1.99%

240,000 3.54%

1,510,000 3.54%

87,100 1.38%

5,970 3.68%


16,900 6.11%

99,300 1.32%




19,500 2.75%

146,000 1.0%

1,130,000 0.9%


1,540,000 2.64%

20,400,000 2.43%

157,000 2.56%

118,000 2.07%

4,760,000 1.7%