Rank	Countries/Territories	Count	Percent
1	United States	344	45.9%
2	China	159	21.2%
3	Germany	67	8.9%
4	Netherlands	43	5.7%
5	France	16	2.1%
6	Japan	12	1.6%
7	Korea, Republic of	10	1.3%
8	Norway	10	1.3%
9	India	9	1.2%
10	Ireland	9	1.2%
11	Australia	9	1.2%
12	Singapore	7	0.9%
13	Cyprus	6	0.8%
14	Canada	6	0.8%
15	Iran, Islamic Republic of	6	0.8%
16	United Kingdom	5	0.7%
17	Philippines	4	0.5%
18	New Zealand	4	0.5%
19	Israel	4	0.5%
20	Hong Kong	4	0.5%
21	Taiwan	3	0.4%
22	Palestine, State of	2	0.3%
23	Saudi Arabia	2	0.3%
24	Belgium	2	0.3%
25	Malaysia	2	0.3%
26	Mexico	1	0.1%
27	South Africa	1	0.1%
28	Turkey	1	0.1%
29	Ukraine	1	0.1%