Rank	Countries/Territories	Count	Percent
1	United States	542	40.2%
2	China	315	23.4%
3	Germany	93	6.9%
4	France	46	3.4%
5	Korea, Republic of	45	3.3%
6	Netherlands	33	2.4%
7	Canada	28	2.1%
8	Japan	24	1.8%
9	Russia	21	1.6%
10	Switzerland	20	1.5%
11	United Kingdom	20	1.5%
12	India	19	1.4%
13	Australia	15	1.1%
14	Taiwan	14	1%
15	Spain	11	0.8%
16	Romania	8	0.6%
17	Cyprus	8	0.6%
18	Indonesia	7	0.5%
19	Thailand	7	0.5%
20	Egypt	6	0.4%
21	Ireland	5	0.4%
22	Sweden	5	0.4%
23	Poland	4	0.3%
24	Yemen	4	0.3%
25	Malaysia	4	0.3%
26	Italy	3	0.2%
27	Denmark	3	0.2%
28	Austria	3	0.2%
29	Singapore	3	0.2%
30	Slovenia	2	0.1%
31	Norway	2	0.1%
32	Oman	2	0.1%
33	Colombia	2	0.1%
34	Czech Republic	2	0.1%
35	Hong Kong	2	0.1%
36	Israel	2	0.1%
37	Iran, Islamic Republic of	2	0.1%
38	Mexico	2	0.1%
39	Libya	2	0.1%
40	Macao	1	0.1%
41	Kenya	1	0.1%
42	New Zealand	1	0.1%
43	Nigeria	1	0.1%
44	Iraq	1	0.1%
45	Argentina	1	0.1%
46	Greece	1	0.1%
47	Chile	1	0.1%
48	Belgium	1	0.1%
49	Brazil	1	0.1%
50	Saudi Arabia	1	0.1%
51	Viet Nam	1	0.1%
52	United Arab Emirates	1	0.1%