Rank	Countries/Territories	Count	Percent
1	United States	473	41.6%
2	China	335	29.5%
3	Germany	81	7.1%
4	France	49	4.3%
5	Japan	31	2.7%
6		21	1.8%
7	Singapore	19	1.7%
8	Iran, Islamic Republic of	15	1.3%
9	Canada	12	1.1%
10	Australia	11	1%
11	United Kingdom	10	0.9%
12	Korea, Republic of	9	0.8%
13	Sweden	8	0.7%
14	Switzerland	7	0.6%
15	India	7	0.6%
16	Netherlands	6	0.5%
17	Turkey	6	0.5%
18	Argentina	5	0.4%
19	Cyprus	5	0.4%
20	Brazil	4	0.4%
21	Hong Kong	3	0.3%
22	Taiwan	3	0.3%
23	Russia	2	0.2%
24	Mongolia	2	0.2%
25	Indonesia	2	0.2%
26	Ireland	2	0.2%
27	Bulgaria	2	0.2%
28	Bangladesh	2	0.2%
29	Saudi Arabia	1	0.1%
30	Ukraine	1	0.1%
31	Norway	1	0.1%
32	Latvia	1	0.1%