Rank	Countries/Territories	Count	Percent
1	United States	351	31.2%
2	China	247	21.9%
3	Germany	72	6.4%
4	Japan	67	6%
5	United Kingdom	42	3.7%
6	Netherlands	28	2.5%
7	Russia	21	1.9%
8	Australia	21	1.9%
9	Korea, Republic of	20	1.8%
10	Spain	20	1.8%
11	France	19	1.7%
12	Italy	17	1.5%
13	Poland	12	1.1%
14	Iran, Islamic Republic of	12	1.1%
15	Belgium	12	1.1%
16	Sweden	12	1.1%
17	Turkey	12	1.1%
18	Singapore	11	1%
19	Canada	11	1%
20	Slovenia	10	0.9%
21	Taiwan	9	0.8%
22	Brazil	9	0.8%
23	Hong Kong	8	0.7%
24	Norway	8	0.7%
25	Thailand	7	0.6%
26	Saudi Arabia	6	0.5%
27	India	6	0.5%
28	Ireland	5	0.4%
29	South Africa	5	0.4%
30	Israel	4	0.4%
31	Romania	4	0.4%
32	Portugal	3	0.3%
33	Lebanon	3	0.3%
34	Lithuania	3	0.3%
35	Malaysia	3	0.3%
36	Mexico	3	0.3%
37	Denmark	3	0.3%
38	Ukraine	3	0.3%
39	Viet Nam	2	0.2%
40	Colombia	2	0.2%
41	Croatia	2	0.2%
42	Cyprus	2	0.2%
43	Hungary	2	0.2%
44	Egypt	2	0.2%
45	Greece	2	0.2%
46	Ecuador	1	0.1%
47	Jordan	1	0.1%
48	Philippines	1	0.1%