Rank	Countries/Territories	Count	Percent
1	United States	493	36.1%
2	China	457	33.5%
3	Germany	106	7.8%
4	Switzerland	55	4%
5	Japan	31	2.3%
6	Hong Kong	28	2.1%
7	Canada	22	1.6%
8	Netherlands	20	1.5%
9	India	19	1.4%
10	Turkey	16	1.2%
11	Ireland	15	1.1%
12	France	14	1%
13	Thailand	9	0.7%
14	Singapore	9	0.7%
15	Australia	8	0.6%
16	Ukraine	8	0.6%
17	United Kingdom	7	0.5%
18	Sweden	7	0.5%
19	Nepal	5	0.4%
20	Iran, Islamic Republic of	4	0.3%
21	Bosnia and Herzegovina	3	0.2%
22	Cyprus	3	0.2%
23	Russia	3	0.2%
24	Korea, Republic of	3	0.2%
25	Malaysia	2	0.1%
26	Italy	2	0.1%
27	Norway	2	0.1%
28	Syrian Arab Republic	2	0.1%
29	Colombia	2	0.1%
30	Egypt	1	0.1%
31	Argentina	1	0.1%
32	Austria	1	0.1%
33	Georgia	1	0.1%
34	Indonesia	1	0.1%
35	Taiwan	1	0.1%
36	South Africa	1	0.1%
37	Philippines	1	0.1%
38	Mauritius	1	0.1%
39	Mongolia	1	0.1%