Rank	Countries/Territories	Count	Percent
1	United States	294	39.1%
2	China	161	21.4%
3	Germany	83	11%
4	Japan	47	6.2%
5	India	40	5.3%
6	Iran, Islamic Republic of	15	2%
7	Singapore	12	1.6%
8	Netherlands	12	1.6%
9	Korea, Republic of	9	1.2%
10	Malaysia	9	1.2%
11	Ireland	8	1.1%
12	Canada	8	1.1%
13	Hong Kong	8	1.1%
14	Brazil	6	0.8%
15	France	6	0.8%
16	Cyprus	4	0.5%
17	Colombia	3	0.4%
18	Australia	3	0.4%
19	Switzerland	3	0.4%
20	Thailand	3	0.4%
21	Turkey	2	0.3%
22	Peru	2	0.3%
23	Philippines	2	0.3%
24	Romania	2	0.3%
25	Russia	2	0.3%
26		2	0.3%
27	Ghana	1	0.1%
28	Nepal	1	0.1%
29	Saudi Arabia	1	0.1%
30	United Arab Emirates	1	0.1%
31	United Kingdom	1	0.1%
32	Sweden	1	0.1%