Rank	Countries/Territories	Count	Percent
1	United States	290	32.3%
2	China	250	27.9%
3	Germany	189	21.1%
4	Korea, Republic of	37	4.1%
5	Netherlands	14	1.6%
6	Japan	14	1.6%
7	Saudi Arabia	10	1.1%
8	Singapore	10	1.1%
9	Cyprus	8	0.9%
10	India	7	0.8%
11	France	6	0.7%
12	Italy	6	0.7%
13	Romania	6	0.7%
14	Taiwan	5	0.6%
15	Ukraine	4	0.4%
16	Russia	4	0.4%
17	Pakistan	4	0.4%
18	Hong Kong	4	0.4%
19	Canada	4	0.4%
20	Australia	3	0.3%
21	Czech Republic	3	0.3%
22	Ireland	3	0.3%
23	United Kingdom	3	0.3%
24	Switzerland	2	0.2%
25	Israel	2	0.2%
26	Iran, Islamic Republic of	2	0.2%
27	Egypt	2	0.2%
28	Brazil	2	0.2%
29	Belgium	1	0.1%
30	Hungary	1	0.1%
31	Mongolia	1	0.1%