Rank	Countries/Territories	Count	Percent
1	United States	301	44.9%
2	China	137	20.4%
3	Germany	75	11.2%
4	Japan	27	4%
5	Netherlands	13	1.9%
6	Canada	13	1.9%
7	Singapore	12	1.8%
8	Taiwan	10	1.5%
9	United Kingdom	9	1.3%
10	India	8	1.2%
11	Cyprus	7	1%
12	Korea, Republic of	7	1%
13	Spain	6	0.9%
14	France	5	0.7%
15	Iran, Islamic Republic of	4	0.6%
16	Ireland	4	0.6%
17	Romania	4	0.6%
18	Malaysia	4	0.6%
19	Mongolia	2	0.3%
20	Russia	2	0.3%
21	Lebanon	2	0.3%
22	Czech Republic	2	0.3%
23	Australia	2	0.3%
24	Bangladesh	2	0.3%
25	Belgium	2	0.3%
26	Sweden	2	0.3%
27	Switzerland	2	0.3%
28	Turkey	2	0.3%
29	Ukraine	2	0.3%
30	South Africa	1	0.1%
31	Indonesia	1	0.1%