Rank	Countries/Territories	Count	Percent
1	United States	415	48.2%
2	China	143	16.6%
3	Germany	113	13.1%
4	Canada	42	4.9%
5	France	34	3.9%
6	India	17	2%
7	Switzerland	13	1.5%
8	Netherlands	13	1.5%
9	United Kingdom	8	0.9%
10	South Africa	7	0.8%
11	Australia	7	0.8%
12	Russia	6	0.7%
13	Pakistan	5	0.6%
14	Belgium	4	0.5%
15	Hong Kong	4	0.5%
16	Ireland	3	0.3%
17	Cyprus	3	0.3%
18	Denmark	3	0.3%
19	Egypt	3	0.3%
20	Azerbaijan	2	0.2%
21	Indonesia	2	0.2%
22	Iran, Islamic Republic of	2	0.2%
23	Singapore	2	0.2%
24	New Zealand	2	0.2%
25	Japan	2	0.2%
26	Malaysia	2	0.2%
27	Philippines	1	0.1%
28	Turkey	1	0.1%
29	Israel	1	0.1%
30	Algeria	1	0.1%