Rank	Countries/Territories	Count	Percent
1	United States	453	50.1%
2	China	196	21.7%
3	Germany	91	10.1%
4	Singapore	25	2.8%
5	Netherlands	19	2.1%
6	United Kingdom	12	1.3%
7	Canada	11	1.2%
8	France	11	1.2%
9	Ireland	10	1.1%
10	India	9	1%
11	Cyprus	9	1%
12	Saudi Arabia	8	0.9%
13	Japan	7	0.8%
14	Australia	7	0.8%
15	Hong Kong	7	0.8%
16	Iran, Islamic Republic of	3	0.3%
17	Denmark	3	0.3%
18	Switzerland	3	0.3%
19	Nepal	2	0.2%
20	Romania	2	0.2%
21	Moldova, Republic of	2	0.2%
22	Nigeria	2	0.2%
23	Ghana	2	0.2%
24	Indonesia	1	0.1%
25	Ethiopia	1	0.1%
26	Finland	1	0.1%
27	Argentina	1	0.1%
28	Colombia	1	0.1%
29	Norway	1	0.1%
30	Palestine, State of	1	0.1%
31	Mongolia	1	0.1%
32	Namibia	1	0.1%
33	Serbia	1	0.1%
34	Thailand	1	0.1%