Rank	Countries/Territories	Count	Percent
1	United States	486	40.7%
2	China	403	33.8%
3	Germany	76	6.4%
4	United Kingdom	30	2.5%
5	Japan	22	1.8%
6	France	17	1.4%
7	Netherlands	15	1.3%
8	Poland	14	1.2%
9	Australia	13	1.1%
10	Ireland	12	1%
11	Italy	12	1%
12	Iran, Islamic Republic of	10	0.8%
13	Canada	10	0.8%
14	Norway	10	0.8%
15	Turkey	10	0.8%
16	Sweden	9	0.8%
17	Cyprus	7	0.6%
18	Singapore	5	0.4%
19	India	4	0.3%
20	Indonesia	4	0.3%
21	Hong Kong	3	0.3%
22	Russia	3	0.3%
23	Korea, Republic of	3	0.3%
24	Malta	2	0.2%
25	Argentina	2	0.2%
26	Austria	2	0.2%
27	Belgium	2	0.2%
28	Greece	1	0.1%
29	Iraq	1	0.1%
30	Saudi Arabia	1	0.1%
31	Taiwan	1	0.1%
32	Lithuania	1	0.1%
33	Nigeria	1	0.1%
34	Philippines	1	0.1%
35	Portugal	1	0.1%