Rank	Countries/Territories	Count	Percent
1	China	447	31.3%
2	United States	373	26.1%
3	Japan	134	9.4%
4	Germany	79	5.5%
5	Switzerland	45	3.2%
6	Singapore	36	2.5%
7	Russia	19	1.3%
8	Georgia	19	1.3%
9	France	17	1.2%
10	Viet Nam	15	1.1%
11	United Kingdom	15	1.1%
12	Canada	14	1%
13	Italy	13	0.9%
14	Mexico	13	0.9%
15	Netherlands	13	0.9%
16	Sweden	13	0.9%
17	Korea, Republic of	12	0.8%
18	Iran, Islamic Republic of	11	0.8%
19	Ireland	10	0.7%
20	Brazil	9	0.6%
21	Spain	9	0.6%
22	Taiwan	9	0.6%
23	Turkey	7	0.5%
24	Bangladesh	7	0.5%
25	Cyprus	7	0.5%
26	India	7	0.5%
27	Iraq	6	0.4%
28	Australia	6	0.4%
29	Portugal	6	0.4%
30	Romania	5	0.4%
31	Thailand	4	0.3%
32	Ukraine	4	0.3%
33	Colombia	4	0.3%
34	Greece	4	0.3%
35	Hong Kong	4	0.3%
36	Argentina	3	0.2%
37	Cameroon	3	0.2%
38	Nigeria	3	0.2%
39	Senegal	3	0.2%
40	Saudi Arabia	2	0.1%
41	United Arab Emirates	2	0.1%
42	Norway	2	0.1%
43	Malaysia	2	0.1%
44	Maldives	1	0.1%
45	Indonesia	1	0.1%
46	Pakistan	1	0.1%
47	Peru	1	0.1%
48	Philippines	1	0.1%
49	Moldova, Republic of	1	0.1%
50	Mongolia	1	0.1%
51	Bulgaria	1	0.1%
52	Belgium	1	0.1%
53	Egypt	1	0.1%
54	Uganda	1	0.1%