Rank	Countries/Territories	Count	Percent
1	China	546	33.1%
2	United States	543	32.9%
3	Germany	128	7.8%
4	Japan	84	5.1%
5	Iran, Islamic Republic of	24	1.5%
6	France	23	1.4%
7	India	22	1.3%
8	Brazil	20	1.2%
9	United Kingdom	18	1.1%
10	Singapore	18	1.1%
11	Belgium	17	1%
12	Netherlands	16	1%
13	Hong Kong	14	0.8%
14	Italy	13	0.8%
15	Spain	13	0.8%
16	Russia	13	0.8%
17	Switzerland	13	0.8%
18	Taiwan	10	0.6%
19	Korea, Republic of	10	0.6%
20	Egypt	10	0.6%
21	Australia	8	0.5%
22	Canada	7	0.4%
23	Greece	6	0.4%
24	Austria	6	0.4%
25	Kenya	6	0.4%
26	Lithuania	5	0.3%
27	Ireland	5	0.3%
28	Thailand	5	0.3%
29	Turkey	5	0.3%
30	Israel	4	0.2%
31	Mexico	3	0.2%
32	Philippines	3	0.2%
33	Romania	3	0.2%
34	Cyprus	3	0.2%
35	Czech Republic	3	0.2%
36	Hungary	3	0.2%
37	Sweden	3	0.2%
38	Saudi Arabia	2	0.1%
39	United Arab Emirates	2	0.1%
40	Chile	2	0.1%
41	Pakistan	2	0.1%
42	Poland	2	0.1%
43	Malaysia	2	0.1%
44	Mongolia	1	0.1%
45	Norway	1	0.1%
46	Denmark	1	0.1%
47	Argentina	1	0.1%
48	Viet Nam	1	0.1%