Rank	Countries/Territories	Count	Percent
1	United States	446	38%
2	China	374	31.9%
3	Germany	134	11.4%
4	France	51	4.3%
5	Canada	48	4.1%
6	Netherlands	27	2.3%
7	Hong Kong	17	1.4%
8	Australia	9	0.8%
9	Switzerland	9	0.8%
10	Korea, Republic of	8	0.7%
11	Japan	7	0.6%
12	Ireland	6	0.5%
13	Singapore	6	0.5%
14	United Kingdom	5	0.4%
15	Sweden	4	0.3%
16	Cyprus	4	0.3%
17	Italy	3	0.3%
18	Czech Republic	2	0.2%
19	Egypt	2	0.2%
20	Bangladesh	2	0.2%
21	Cameroon	2	0.2%
22	Argentina	1	0.1%
23	India	1	0.1%
24	Mongolia	1	0.1%
25	Taiwan	1	0.1%
26	Turkey	1	0.1%
27	South Africa	1	0.1%
28	Portugal	1	0.1%