Rank	Countries/Territories	Count	Percent
1	United States	435	43%
2	China	267	26.4%
3	Germany	75	7.4%
4	Japan	30	3%
5	Canada	30	3%
6	Netherlands	22	2.2%
7	Taiwan	21	2.1%
8		21	2.1%
9	United Kingdom	15	1.5%
10	Norway	11	1.1%
11	Spain	11	1.1%
12	India	10	1%
13	Australia	8	0.8%
14	France	8	0.8%
15	Ireland	6	0.6%
16	Italy	4	0.4%
17	Korea, Republic of	4	0.4%
18	Cyprus	3	0.3%
19	Switzerland	3	0.3%
20	Saudi Arabia	3	0.3%
21	Singapore	3	0.3%
22	Pakistan	3	0.3%
23	Portugal	2	0.2%
24	South Africa	2	0.2%
25	Brazil	2	0.2%
26	Indonesia	2	0.2%
27	Iran, Islamic Republic of	2	0.2%
28	Hong Kong	2	0.2%
29	Malaysia	1	0.1%
30	Czech Republic	1	0.1%
31	Belgium	1	0.1%
32	Argentina	1	0.1%
33	Sri Lanka	1	0.1%
34	Thailand	1	0.1%