Rank	Countries/Territories	Count	Percent
1	United States	460	43.3%
2	China	302	28.4%
3	Germany	89	8.4%
4	United Kingdom	28	2.6%
5	Japan	22	2.1%
6	Ireland	18	1.7%
7	France	18	1.7%
8	Australia	15	1.4%
9	Indonesia	15	1.4%
10	India	10	0.9%
11	Canada	9	0.8%
12	Sweden	8	0.8%
13	Netherlands	8	0.8%
14	Turkey	5	0.5%
15	Iran, Islamic Republic of	5	0.5%
16	Italy	5	0.5%
17	Spain	4	0.4%
18	Korea, Republic of	4	0.4%
19	Luxembourg	4	0.4%
20	Qatar	4	0.4%
21	Poland	3	0.3%
22	Nigeria	3	0.3%
23	Singapore	3	0.3%
24	Kenya	3	0.3%
25	Greece	3	0.3%
26	Denmark	3	0.3%
27	Egypt	2	0.2%
28	Brazil	2	0.2%
29	Cyprus	2	0.2%
30	Romania	2	0.2%
31	Portugal	1	0.1%
32	Peru	1	0.1%
33	Malaysia	1	0.1%
34	Switzerland	1	0.1%