Rank	Countries/Territories	Count	Percent
1	United States	304	34.5%
2	China	263	29.9%
3	Germany	103	11.7%
4	France	26	3%
5	Greece	25	2.8%
6	Turkey	18	2%
7	Korea, Republic of	17	1.9%
8	Canada	14	1.6%
9	Ukraine	12	1.4%
10	Japan	11	1.2%
11	Singapore	10	1.1%
12	Switzerland	10	1.1%
13	Netherlands	9	1%
14	Ireland	7	0.8%
15	Hong Kong	6	0.7%
16	Brazil	6	0.7%
17	Australia	4	0.5%
18	Argentina	4	0.5%
19	Taiwan	4	0.5%
20	United Kingdom	4	0.5%
21	Spain	3	0.3%
22	Portugal	3	0.3%
23	Cyprus	3	0.3%
24	India	3	0.3%
25	Israel	3	0.3%
26	Iran, Islamic Republic of	2	0.2%
27	Italy	1	0.1%
28	Malaysia	1	0.1%
29	Egypt	1	0.1%
30	Armenia	1	0.1%
31	Norway	1	0.1%
32	Sweden	1	0.1%