Rank	Countries/Territories	Count	Percent
1	China	278	23.1%
2	Germany	252	20.9%
3	United States	248	20.6%
4	India	65	5.4%
5	Bulgaria	51	4.2%
6	Netherlands	41	3.4%
7	Korea, Republic of	25	2.1%
8	France	22	1.8%
9	Egypt	20	1.7%
10	Romania	20	1.7%
11	Ireland	18	1.5%
12	Canada	16	1.3%
13	Russia	15	1.2%
14	Turkey	12	1%
15	United Kingdom	9	0.7%
16	Belgium	7	0.6%
17	Hong Kong	7	0.6%
18	Indonesia	6	0.5%
19	Iran, Islamic Republic of	6	0.5%
20	Italy	6	0.5%
21	Nigeria	6	0.5%
22	Viet Nam	6	0.5%
23	Singapore	5	0.4%
24	Japan	5	0.4%
25	Cyprus	5	0.4%
26	Brazil	5	0.4%
27	Ecuador	4	0.3%
28	Spain	4	0.3%
29	South Africa	3	0.2%
30	Denmark	3	0.2%
31	Finland	3	0.2%
32	Greece	3	0.2%
33	Philippines	3	0.2%
34	Poland	3	0.2%
35	Kyrgyzstan	2	0.2%
36	Kenya	2	0.2%
37	Australia	2	0.2%
38	Bangladesh	2	0.2%
39	United Arab Emirates	2	0.2%
40	Switzerland	1	0.1%
41	Tanzania, United Republic of	1	0.1%
42	Bolivia, Plurinational State of	1	0.1%
43	Colombia	1	0.1%
44	Israel	1	0.1%
45	Latvia	1	0.1%
46	Lebanon	1	0.1%
47	Lithuania	1	0.1%
48	Mauritius	1	0.1%
49	Mexico	1	0.1%
50	Peru	1	0.1%