Rank	Countries/Territories	Count	Percent
1	United States	247	37.7%
2	China	235	35.8%
3	Germany	70	10.7%
4	Japan	13	2%
5	Netherlands	8	1.2%
6	Saudi Arabia	7	1.1%
7	France	7	1.1%
8	Korea, Republic of	6	0.9%
9	Norway	6	0.9%
10	Portugal	5	0.8%
11	United Kingdom	5	0.8%
12	Ireland	5	0.8%
13	India	4	0.6%
14	Israel	3	0.5%
15	Canada	3	0.5%
16	Australia	2	0.3%
17	Brazil	2	0.3%
18	Colombia	2	0.3%
19	Cyprus	2	0.3%
20	Egypt	2	0.3%
21	Ethiopia	2	0.3%
22	Kenya	2	0.3%
23	Greece	2	0.3%
24	Hong Kong	2	0.3%
25	Philippines	2	0.3%
26	Nicaragua	2	0.3%
27	Turkey	2	0.3%
28	Rwanda	2	0.3%
29	Singapore	1	0.2%
30	Switzerland	1	0.2%
31	Malaysia	1	0.2%
32	Martinique	1	0.2%
33	Palestine, State of	1	0.2%
34	Hungary	1	0.2%