Here is the country based stats for the Google Code Jam 2018 after Round 2.

https://docs.google.com/spreadsheets/d/e/2PACX-1vSYF-ONpBokyihEQbVfzG2HEatyeyHYtVUVWWxGdjguoJd2YoLlpjWNg509gq1L8AUDq7rzK701CNgt/pubhtml?gid=1034207289&single=true

Country Qualified
China 199
Russia 101
Japan 99
United States 65
South Korea 52
Taiwan 42
Poland 34
India 26
Vietnam 24
Ukraine 23
Brazil 22
Canada 21
Hong Kong 16
Singapore 15
Belarus 13
Germany 13
Iran 13
Indonesia 12
Czech Republic 11
Egypt 10
Romania 10
Netherlands 9
UNKNOWN 8
Argentina 8
Australia 8
Georgia 8
Sweden 8
Thailand 8
Kazakhstan 7
United Kingdom 7
Bangladesh 6
Bulgaria 6
Latvia 6
France 5
Hungary 5
Slovakia 5
Croatia 4
Finland 4
Italy 4
Lithuania 4
Mexico 4
Switzerland 4
Cuba 3
Estonia 3
Jordan 3
Peru 3
Philippines 3
Serbia 3
Spain 3
Turkey 3
Armenia 2
Belgium 2
Greece 2
New Zealand 2
Portugal 2
Slovenia 2
Austria 1
Bosnia and Herzegovina 1
Denmark 1
Iceland 1
Ireland 1
Israel 1
Lebanon 1
Macau 1
Macedonia [FYROM] 1
Malaysia 1
Nepal 1
Norway 1
South Africa 1
Syria 1
Venezuela 1