Rank	Countries/Territories	Count	Percent
1	United States	272	33.3%
2	China	252	30.8%
3	Germany	74	9.1%
4	Korea, Republic of	27	3.3%
5	Japan	24	2.9%
6	India	17	2.1%
7	France	17	2.1%
8	Czech Republic	14	1.7%
9	Sweden	10	1.2%
10	Netherlands	8	1%
11	Ireland	7	0.9%
12	Singapore	6	0.7%
13	Canada	6	0.7%
14	Taiwan	6	0.7%
15	United Kingdom	6	0.7%
16	Turkey	5	0.6%
17	Hong Kong	5	0.6%
18	Italy	5	0.6%
19	Iran, Islamic Republic of	4	0.5%
20	Spain	4	0.5%
21	Saudi Arabia	4	0.5%
22	Poland	4	0.5%
23	Cyprus	4	0.5%
24	Australia	4	0.5%
25	Belgium	4	0.5%
26	Austria	3	0.4%
27	Colombia	3	0.4%
28	Chile	2	0.2%
29	Bangladesh	2	0.2%
30	Denmark	2	0.2%
31	Greece	2	0.2%
32	Portugal	2	0.2%
33	Switzerland	2	0.2%
34	Iraq	2	0.2%
35	Norway	2	0.2%
36	Mongolia	2	0.2%
37	Pakistan	1	0.1%
38	Argentina	1	0.1%
39	Brazil	1	0.1%
40	Thailand	1	0.1%