Rank	Countries/Territories	Count	Percent
1	United States	448	42.3%
2	China	213	20.1%
3	Germany	77	7.3%
4	Japan	59	5.6%
5	Netherlands	47	4.4%
6	France	30	2.8%
7	Russia	24	2.3%
8	Indonesia	17	1.6%
9	United Kingdom	16	1.5%
10	Singapore	13	1.2%
11	Iran, Islamic Republic of	13	1.2%
12	Slovakia	11	1%
13	New Zealand	11	1%
14	Ireland	9	0.8%
15	Brazil	9	0.8%
16	Australia	8	0.8%
17	Canada	7	0.7%
18	Cyprus	7	0.7%
19	Turkey	7	0.7%
20	Egypt	6	0.6%
21	Philippines	5	0.5%
22	Ukraine	3	0.3%
23	Morocco	3	0.3%
24	Korea, Republic of	2	0.2%
25	Mauritius	2	0.2%
26	Ghana	2	0.2%
27	Honduras	2	0.2%
28	Bangladesh	2	0.2%
29	Belgium	2	0.2%
30	Poland	2	0.2%
31	Romania	1	0.1%
32	South Africa	1	0.1%
33	Italy	1	0.1%