Table:
text: 2008 World Sambo Championships
Medal overview
Medal table
Rank_ Nation Gold Silver Bronze Total_
13 Romania 0 1 0 1
17 Serbia 0 0 1 1
17 Spain 0 0 1 1
17 Tajikistan 0 0 1 1
17 Turkmenistan 0 0 1 1
21 Algeria 0 0 0 0
21 Austria 0 0 0 0
21 Belgium 0 0 0 0
21 Cameroon 0 0 0 0
21 Canada 0 0 0 0
21 Colombia 0 0 0 0
21 Czech Republic 0 0 0 0
21 Cyprus 0 0 0 0
21 Ecuador 0 0 0 0
21 Finland 0 0 0 0
21 Great Britain 0 0 0 0
21 India 0 0 0 0

text: 2008 World Sambo Championships
Medal overview
Medal table
Rank_ Nation Gold Silver Bronze Total_
21 Syria 0 0 0 0
21 Slovenia 0 0 0 0
21 Slovakia 0 0 0 0
21 Thailand 0 0 0 0
21 Tunisia 0 0 0 0
21 Turkey 0 0 0 0
21 United States 0 0 0 0
21 Yemen 0 0 0 0

text: 2008 World Sambo Championships
Medal overview
Medal table
Rank_ Nation Gold Silver Bronze Total_
21 Indonesia 0 0 0 0
21 Ireland 0 0 0 0
21 Israel 0 0 0 0
21 Italy 0 0 0 0
21 Jordan 0 0 0 0
21 South Korea 0 0 0 0
21 Kyrgyzstan 0 0 0 0
21 Lebanon 0 0 0 0
21 Malaysia 0 0 0 0
21 Morocco 0 0 0 0
21 Moldova 0 0 0 0
21 Nepal 0 0 0 0
21 New Zealand 0 0 0 0
21 Pakistan 0 0 0 0
21 Panama 0 0 0 0
21 Peru 0 0 0 0
21 Poland 0 0 0 0

Question: How many nations finished last at the 2008 World Sambo Championships with a total of 0 medals?