Rank	Countries/Territories	Count	Percent
1	United States	499	45.3%
2	China	248	22.5%
3	Germany	121	11%
4	France	34	3.1%
5	Japan	32	2.9%
6		29	2.6%
7	India	18	1.6%
8	Canada	17	1.5%
9	Netherlands	17	1.5%
10	Russia	16	1.5%
11	Singapore	11	1%
12	Bulgaria	7	0.6%
13	Australia	6	0.5%
14	Hong Kong	5	0.5%
15	Cyprus	4	0.4%
16	Korea, Republic of	4	0.4%
17	Libya	3	0.3%
18	Ukraine	3	0.3%
19	Portugal	3	0.3%
20	Colombia	3	0.3%
21	Brazil	2	0.2%
22	Jordan	2	0.2%
23	Iran, Islamic Republic of	2	0.2%
24	Ireland	2	0.2%
25	Pakistan	2	0.2%
26	Sweden	2	0.2%
27	Taiwan	2	0.2%
28	Thailand	2	0.2%
29	Turkey	1	0.1%
30	Mauritius	1	0.1%
31	Romania	1	0.1%
32	Italy	1	0.1%
33	Ecuador	1	0.1%
34	Ethiopia	1	0.1%