Rank	Countries/Territories	Count	Percent
1	United States	487	36.7%
2	China	285	21.5%
3	Germany	127	9.6%
4	Switzerland	93	7%
5	Japan	55	4.1%
6	India	51	3.8%
7	Netherlands	32	2.4%
8	United Kingdom	26	2%
9	Australia	20	1.5%
10	Taiwan	18	1.4%
11	Canada	13	1%
12	Iran, Islamic Republic of	10	0.8%
13	Italy	8	0.6%
14	Korea, Republic of	7	0.5%
15	Brazil	7	0.5%
16	Colombia	7	0.5%
17	Cyprus	7	0.5%
18	Israel	6	0.5%
19	Ireland	5	0.4%
20	Spain	5	0.4%
21	France	5	0.4%
22	Indonesia	5	0.4%
23	Singapore	4	0.3%
24	Russia	4	0.3%
25	Latvia	4	0.3%
26	Yemen	4	0.3%
27	Turkey	3	0.2%
28	Serbia	3	0.2%
29	Mexico	3	0.2%
30	South Africa	3	0.2%
31	Hong Kong	3	0.2%
32	Argentina	2	0.2%
33	Sweden	2	0.2%
34	Saudi Arabia	2	0.2%
35	New Zealand	2	0.2%
36	Thailand	2	0.2%
37	United Arab Emirates	1	0.1%
38	Viet Nam	1	0.1%
39	Bangladesh	1	0.1%
40	Denmark	1	0.1%
41	Hungary	1	0.1%
42	Guatemala	1	0.1%