Rank	Countries/Territories	Count	Percent
1	China	252	28.4%
2	United States	198	22.3%
3	Japan	174	19.6%
4	Germany	51	5.7%
5	Singapore	43	4.8%
6	Netherlands	21	2.4%
7	Korea, Republic of	16	1.8%
8	India	12	1.4%
9	United Kingdom	12	1.4%
10	Russia	11	1.2%
11	Australia	10	1.1%
12	Canada	9	1%
13	Austria	8	0.9%
14	Bulgaria	7	0.8%
15	Poland	6	0.7%
16	France	6	0.7%
17	Spain	5	0.6%
18	Latvia	4	0.5%
19	Indonesia	3	0.3%
20	Hong Kong	3	0.3%
21	Ukraine	3	0.3%
22	Nigeria	3	0.3%
23	Philippines	3	0.3%
24	Nepal	2	0.2%
25	Thailand	2	0.2%
26	Turkey	2	0.2%
27	Sweden	2	0.2%
28	South Africa	2	0.2%
29	Cyprus	2	0.2%
30	Brazil	2	0.2%
31	Iraq	2	0.2%
32	Ireland	2	0.2%
33	Viet Nam	2	0.2%
34	Italy	1	0.1%
35	Iran, Islamic Republic of	1	0.1%
36	Lebanon	1	0.1%
37	Lithuania	1	0.1%
38	Taiwan	1	0.1%
39	Pakistan	1	0.1%
40	Portugal	1	0.1%