Rank	Countries/Territories	Count	Percent
1	United States	529	38.1%
2	China	289	20.8%
3	Germany	149	10.7%
4	Singapore	66	4.8%
5	Netherlands	48	3.5%
6	Norway	41	3%
7	France	28	2%
8	Canada	21	1.5%
9	United Kingdom	21	1.5%
10	Switzerland	19	1.4%
11	India	17	1.2%
12	Mexico	17	1.2%
13	Japan	16	1.2%
14	Ireland	13	0.9%
15	Iran, Islamic Republic of	12	0.9%
16	Australia	10	0.7%
17	Hong Kong	8	0.6%
18	Cyprus	8	0.6%
19	South Africa	8	0.6%
20	Ukraine	7	0.5%
21	Turkey	5	0.4%
22	Sweden	5	0.4%
23	Korea, Republic of	5	0.4%
24	Latvia	4	0.3%
25	Pakistan	4	0.3%
26	Argentina	4	0.3%
27	Brazil	4	0.3%
28	Austria	3	0.2%
29	Romania	3	0.2%
30	Russia	3	0.2%
31	Mauritius	3	0.2%
32	Bangladesh	2	0.1%
33	Belgium	2	0.1%
34	Ghana	2	0.1%
35	Indonesia	2	0.1%
36	Venezuela, Bolivarian Republic of	2	0.1%
37	Slovenia	1	0.1%
38	Taiwan	1	0.1%
39	Tunisia	1	0.1%
40	Colombia	1	0.1%
41	Italy	1	0.1%
42	Malaysia	1	0.1%
43	Mongolia	1	0.1%
44	Philippines	1	0.1%
45	Portugal	1	0.1%