Rank	Countries/Territories	Count	Percent
1	United States	227	41.6%
2	China	161	29.5%
3	Germany	48	8.8%
4	Canada	21	3.8%
5	India	13	2.4%
6	France	10	1.8%
7	Korea, Republic of	7	1.3%
8	Netherlands	7	1.3%
9	Ireland	5	0.9%
10	Ukraine	5	0.9%
11	Japan	4	0.7%
12	Australia	3	0.5%
13	Egypt	3	0.5%
14	Romania	3	0.5%
15	Russia	2	0.4%
16	Saudi Arabia	2	0.4%
17	Singapore	2	0.4%
18	Switzerland	2	0.4%
19	United Kingdom	2	0.4%
20	Viet Nam	2	0.4%
21	Colombia	2	0.4%
22	Cyprus	2	0.4%
23	Bangladesh	2	0.4%
24	Philippines	2	0.4%
25	Ghana	2	0.4%
26	Greece	1	0.2%
27	Jordan	1	0.2%
28	Argentina	1	0.2%
29	Ethiopia	1	0.2%
30	Taiwan	1	0.2%
31	Uganda	1	0.2%
32	Sierra Leone	1	0.2%