Rank	Countries/Territories	Count	Percent
1	United States	512	36.4%
2	China	451	32.1%
3	Germany	143	10.2%
4	Netherlands	53	3.8%
5	France	45	3.2%
6	Canada	24	1.7%
7	Ireland	20	1.4%
8		19	1.4%
9	Japan	18	1.3%
10	Norway	11	0.8%
11	Australia	11	0.8%
12	Cyprus	11	0.8%
13	Korea, Republic of	10	0.7%
14	Singapore	9	0.6%
15	India	9	0.6%
16	United Kingdom	9	0.6%
17	Hong Kong	7	0.5%
18	Philippines	6	0.4%
19	Iran, Islamic Republic of	6	0.4%
20	New Zealand	4	0.3%
21	Israel	4	0.3%
22	Ukraine	3	0.2%
23	Taiwan	3	0.2%
24	Saudi Arabia	2	0.1%
25	Palestine, State of	2	0.1%
26	Malaysia	2	0.1%
27	Greece	2	0.1%
28	Belgium	2	0.1%
29	Algeria	2	0.1%
30	Colombia	1	0.1%
31	Indonesia	1	0.1%
32	Mexico	1	0.1%
33	South Africa	1	0.1%
34	Turkey	1	0.1%