Rank	Countries/Territories	Count	Percent
1	United States	645	40.6%
2	China	320	20.2%
3	Germany	85	5.4%
4	Russia	49	3.1%
5	Ireland	47	3%
6	Korea, Republic of	46	2.9%
7	Japan	42	2.6%
8	France	42	2.6%
9	India	31	2%
10	Italy	28	1.8%
11	Canada	24	1.5%
12	Australia	24	1.5%
13	Malaysia	22	1.4%
14		20	1.3%
15	Netherlands	14	0.9%
16	Iran, Islamic Republic of	12	0.8%
17	Portugal	10	0.6%
18	Singapore	9	0.6%
19	Czech Republic	9	0.6%
20	Austria	8	0.5%
21	Turkey	8	0.5%
22	United Kingdom	8	0.5%
23	Switzerland	7	0.4%
24	Belgium	6	0.4%
25	Brazil	6	0.4%
26	Cyprus	5	0.3%
27	Saudi Arabia	5	0.3%
28	Taiwan	5	0.3%
29	Slovakia	5	0.3%
30	Spain	4	0.3%
31	Denmark	4	0.3%
32	Egypt	4	0.3%
33	Hong Kong	3	0.2%
34	Norway	3	0.2%
35	Pakistan	3	0.2%
36	Israel	3	0.2%
37	Latvia	3	0.2%
38	Thailand	3	0.2%
39	Viet Nam	3	0.2%
40	Sweden	2	0.1%
41	Panama	2	0.1%
42	Indonesia	2	0.1%
43	Costa Rica	2	0.1%
44	Bangladesh	2	0.1%
45	Argentina	2	0.1%
46	Mongolia	1	0.1%