Rank	Countries/Territories	Count	Percent
1	United States	661	42.2%
2	China	473	30.2%
3	Germany	158	10.1%
4	France	54	3.4%
5	Netherlands	50	3.2%
6	Japan	42	2.7%
7	Canada	15	1%
8	Russia	12	0.8%
9	Hong Kong	11	0.7%
10	Singapore	9	0.6%
11	Norway	8	0.5%
12	Cyprus	7	0.4%
13	Australia	7	0.4%
14	Brazil	7	0.4%
15	Bangladesh	6	0.4%
16	India	6	0.4%
17	Ukraine	6	0.4%
18	Iran, Islamic Republic of	5	0.3%
19	Korea, Republic of	4	0.3%
20	Turkey	4	0.3%
21	South Africa	4	0.3%
22	New Zealand	2	0.1%
23	Philippines	2	0.1%
24	Malaysia	2	0.1%
25	Ireland	2	0.1%
26	Italy	2	0.1%
27	Czech Republic	2	0.1%
28	Colombia	2	0.1%
29	Argentina	1	0.1%
30	Mongolia	1	0.1%
31	Switzerland	1	0.1%