Happiest countries on the planet (score):

1. Costa Rica (64.0)

2. Vietnam (60.4)

3. Colombia (59.8)

4. Belize (59.3)

5. El Salvador (58.9)

6. Jamaica (58.5)

7. Panama (57.8)

8. Nicaragua (57.1)

9. Venezuela (56.9)

9. Guatemala (56.9)

11. Bangladesh (56.3)

12. Cuba (56.2)

13. Honduras (56.0)

14. Indonesia (55.5)

15. Israel (55.2)

16. Pakistan (54.1)

16. Argentina (54.1)

16. Albania (54.1)

19. Chile (53.9)

20. Thailand (53.5)

Saddest countries on the planet:

132. Benin (31.1)

133. Tanzania (30.7)

134. Democratic Republic of the Congo (30.5)

134. Burundi (30.5)

136. Trinidad and Tobago (30.3)

137. Guinea (30.0)

138. Luxembourg (29.0)

139. Sierra Leone (28.8)

140. Macedonia (28.3)

141. Togo (28.2)

141. South Africa (28.2)

143. Kuwait (27.1)

144. Niger (26.8)

144. Mongolia (26.8)

146. Bahrain (26.6)

147. Mali (26.0)

148. Central African Republic (25.3)

149. Qatar (25.2)

150. Chad (24.7)

151. Botswana (22.6)

Source: Happy Planet Index, New Economics Foundation