NATION—Current VDR/Historical VDR

Australia 1.4  /14.0

Bulgaria 2.2 /???

Canada 1.9 /10.2

France 1.9 /47.4

Germany 1.9 /67.1

Iran 4.0 /27.1

Japan .8 /33.1

Mexico ??? /???

New Zealand 1.8 /22.0

Russia 16.7 /208.1

United Kingdom 1.3 /17.6 

United States 6.1 /13.7