Rank	Countries/Territories	Count	Percent
1	United States	317	33.8%
2	China	260	27.7%
3	Germany	124	13.2%
4	France	55	5.9%
5	Japan	26	2.8%
6		25	2.7%
7	Sweden	16	1.7%
8	Hong Kong	11	1.2%
9	Canada	10	1.1%
10	Singapore	10	1.1%
11	Korea, Republic of	8	0.9%
12	India	8	0.9%
13	Cyprus	6	0.6%
14	Netherlands	6	0.6%
15	Ireland	6	0.6%
16	United Kingdom	6	0.6%
17	Finland	5	0.5%
18	Colombia	4	0.4%
19	Greece	4	0.4%
20	Norway	4	0.4%
21	Spain	3	0.3%
22	Taiwan	3	0.3%
23	Ukraine	3	0.3%
24	Viet Nam	2	0.2%
25	Russia	2	0.2%
26	Malaysia	2	0.2%
27	Iran, Islamic Republic of	2	0.2%
28	Hungary	2	0.2%
29	Argentina	2	0.2%
30	Bangladesh	2	0.2%
31	Bulgaria	2	0.2%
32	Mongolia	1	0.1%
33	Romania	1	0.1%