क्षेत्र
Africa
2
Arkhangelʹska︠i︡a oblastʹ
1
Asia, Central
2
Bangladesh
2
Caucasus
1
Connecticut
1
Dead Sea (Israel and Jordan)
1
Developing countries
1
East Asia
1
France
1
Germany
1
India
6
Israel
1
Louisiana
1
Malaysia
2
Pacific Area
1
Pakistan
1
Russia (Federation)
3
Russia, Northwestern
1
Saint Petersburg
1
Siberia
1
Siberia (Russia)
1
Slavic countries
2
South Asia
4
Soviet Union
1
Sri Lanka
1
Tajikistan
1
Tiberias, Lake (Israel)
1
Turkmenistan
1
United States
7
Venice (Italy)
1
West Bengal
1