Rank	Countries/Territories	Count	Percent
1	United States	229	35.8%
2	China	213	33.3%
3	Germany	57	8.9%
4	Japan	31	4.9%
5	France	20	3.1%
6	Netherlands	11	1.7%
7	Korea, Republic of	10	1.6%
8	South Africa	9	1.4%
9	Singapore	8	1.3%
10	Ireland	7	1.1%
11	India	6	0.9%
12	Taiwan	6	0.9%
13	Canada	4	0.6%
14	Iran, Islamic Republic of	3	0.5%
15	Australia	3	0.5%
16	Viet Nam	3	0.5%
17	Spain	3	0.5%
18	United Arab Emirates	2	0.3%
19	Italy	2	0.3%
20	Norway	2	0.3%
21	Mexico	2	0.3%
22	Mongolia	2	0.3%
23	Poland	1	0.2%
24	Algeria	1	0.2%
25	Cyprus	1	0.2%
26	Denmark	1	0.2%
27	Slovakia	1	0.2%
28	Ukraine	1	0.2%