Rank	Countries/Territories	Count	Percent
1	United States	545	44.1%
2	China	253	20.5%
3	Germany	169	13.7%
4	India	47	3.8%
5	France	38	3.1%
6	Canada	32	2.6%
7	Netherlands	20	1.6%
8	South Africa	17	1.4%
9	Singapore	15	1.2%
10	Hong Kong	13	1.1%
11	Cyprus	11	0.9%
12	Mexico	9	0.7%
13	Japan	8	0.6%
14	Korea, Republic of	8	0.6%
15	Norway	7	0.6%
16	Iraq	6	0.5%
17	Switzerland	6	0.5%
18	Australia	5	0.4%
19	Ireland	4	0.3%
20	Argentina	3	0.2%
21	Poland	3	0.2%
22	Sri Lanka	2	0.2%
23	Viet Nam	2	0.2%
24	Iran, Islamic Republic of	2	0.2%
25	Pakistan	2	0.2%
26	Philippines	2	0.2%
27	Italy	1	0.1%
28	United Kingdom	1	0.1%
29	Romania	1	0.1%
30	Saudi Arabia	1	0.1%
31	Senegal	1	0.1%
32	Mauritius	1	0.1%