Youtube上的频道如 National Institute of Standards and Technology


2,360,000 3.11%

10,500,000 3.02%


760,000 1.68%

567,000 4.18%

416,000 4.69%

10,900 6.49%

41,700 1.39%


5,070 4.04%

18,800 1.77%

8,960 3.75%


8,370 2.12%

26,900 3.46%

108,000 3.56%

36,000 1.73%

553,000 1.21%

31,900 2.02%

20,400,000 2.43%

853,000 3.08%


101,000 3.54%

843,000 2.3%