Rank	Countries/Territories	Count	Percent
1	United States	675	40.8%
2	China	557	33.7%
3	Germany	120	7.3%
4	France	51	3.1%
5	Norway	47	2.8%
6	Singapore	24	1.5%
7	Japan	19	1.1%
8	Netherlands	18	1.1%
9		17	1%
10	Canada	14	0.8%
11	Australia	13	0.8%
12	United Kingdom	13	0.8%
13	Cyprus	8	0.5%
14	Russia	8	0.5%
15	Sri Lanka	7	0.4%
16	Korea, Republic of	7	0.4%
17	Iran, Islamic Republic of	6	0.4%
18	India	5	0.3%
19	Hong Kong	4	0.2%
20	Latvia	3	0.2%
21	Luxembourg	3	0.2%
22	Argentina	3	0.2%
23	Italy	3	0.2%
24	South Africa	3	0.2%
25	Spain	3	0.2%
26	Ukraine	3	0.2%
27	Taiwan	2	0.1%
28	Turkey	2	0.1%
29	Poland	2	0.1%
30	Romania	2	0.1%
31	Bangladesh	2	0.1%
32	Malaysia	2	0.1%
33	Mexico	2	0.1%
34	Mongolia	1	0.1%
35	Hungary	1	0.1%
36	Indonesia	1	0.1%
37	Iraq	1	0.1%
38	Sweden	1	0.1%
39	Switzerland	1	0.1%
40	Viet Nam	1	0.1%