You should have expressed yourself in a different manner (i.e. the numbers). I actually thought at first that you wrote $18.315 billion and wanted to correct you. To clarify, we are talking about $18 Trillion USD debt. According to wikipedia it is 72.50% of the GDP while for
Russia it is only 11.42%
I am not sure, whether your figures are accurate. According to the site which you had mentioned earlier (
http://www.nationaldebtclocks.org), the US GDP is $17.418 billion. The net debt is $18.319 billion, so net debt accounts for 105% of the United States GDP. And according to the same site, the Russian GDP is $2.117 billion (the Russian economy is having a significant informal sector, so the real GDP might be much higher). So the net debt accounts for 11.4% of the Russian GDP.