Rank	Countries/Territories	Count	Percent
1	United States	372	45.6%
2	China	217	26.6%
3	Germany	82	10%
4	Switzerland	16	2%
5	Japan	14	1.7%
6	France	14	1.7%
7	Korea, Republic of	8	1%
8	India	8	1%
9	Australia	7	0.9%
10	Turkey	7	0.9%
11	United Kingdom	7	0.9%
12	Netherlands	7	0.9%
13	Portugal	7	0.9%
14	Ukraine	6	0.7%
15	Cyprus	6	0.7%
16	Brazil	3	0.4%
17	Canada	3	0.4%
18	Hong Kong	3	0.4%
19	Malaysia	3	0.4%
20	Mongolia	3	0.4%
21	Iran, Islamic Republic of	3	0.4%
22	Singapore	3	0.4%
23	Sweden	2	0.2%
24	Italy	2	0.2%
25	Taiwan	2	0.2%
26	Thailand	2	0.2%
27	Austria	2	0.2%
28	Bangladesh	2	0.2%
29	Argentina	2	0.2%
30	Indonesia	1	0.1%
31	Romania	1	0.1%
32	Russia	1	0.1%