Table:
State | Title | Name | Entered office
Barbados | President of the Senate | Sir Stanley Robinson | 1966
Barbados | Speaker of the House of Assembly | Sir Theodore Brancker | 1961
Bolivia | President of the Senate | ? | 1970
Bolivia | President of the Chamber of Deputies | ? | 1970
Brazil | President of the Senate | João Cleofas de Oliveira | 1970
Brazil | President of the Chamber of Deputies | Geraldo Freire da Silva | 1970
Canada | Speaker of the Senate | Hon. Jean-Paul Deschatelets | September 5, 1968
Canada | Speaker of the House of Commons | Hon. Lucien Lamoureux | January 18, 1966
Chile | President of the Senate | Tomás Pablo Elorza | 1969
Chile | President of the Chamber of Deputies | Fernando Humberto Andrés Sanhueza Herbarge | July 20, 1970
Colombia | President of the Senate | Eduardo Abuchaibe Ramírez | 1970
Colombia | President of the Chamber of Representatives | ? | ?
Costa Rica | President of the Congress | Daniel Oduber Quirós | 1970
Dominican Republic | President of Assembly | Pedro Váldez ? | 1966 ?
Ecuador | President of the Senate | ? | ?
Ecuador | President of the Chamber of Deputies | ? | ?
El Salvador | President of the Legislative Assembly | Dr. Benjamin Iteriano ? | 1970 ?
Guatemala | President of the Congress | Mario Sandoval Alarcón | 1970
Guyana | Speaker of the Legislative Assembly | Hon. Rahman Bacchus Gajraj | 1968
Haiti | President of the National Assembly | Ulrick St. Louis ? | ?
Honduras | President of the National Congress | Lic. Mario Rivera López | 1965
Jamaica | President of the Senate | G. S. Ranglin | December 7, 1962
Jamaica | Speaker of the House of Representatives | Eugene Parkinson | 1967
Mexico | President of the Senate | Lic. Manuel Aguirre[disambiguation needed] ? | 1967 ?
Mexico | President of the Federal Chamber of Deputies | Lic. Luis Farias ? | 1967 ?
Nicaragua | President of the Senate | Dr. Adrían Cuadra Gutiérrez ? | 
Nicaragua | President of the Chamber of Deputies | Dr. Orlando Montenegro ? | 
Paraguay | President of the Council of State | Dr. Juan Ramón Chavez ? | 1967 ?
Trinidad and Tobago | President of the Senate | J. Hamilton Maurice | December 29, 1961
Trinidad and Tobago | Speaker of the House of Representatives | A. C. Thomasos | December 29, 1961
USA | President of the Senate (The Vice President of the United States of America) | Spiro Agnew | January 20, 1969
USA | President pro tempore of the Senate | Richard B. Russell | January 2, 1969
USA | Speaker of the House of Representatives | John William McCormack | January 10, 1962
Puerto Rico | President of the Senate | Rafael Hernández Colón | 1969
Puerto Rico | Speaker of the House of Representatives | Angel Viera Martínez | January 13, 1969
Uruguay | President of the Senate (The Vice President of Uruguay) | Dr. Alberto Abdala | December 6, 1967
Uruguay | President of the Chamber of Deputies | Fernando Elichirigoity | March 1, 1970
Venezuela | President of the Senate | Dr. José A. Pérez Díaz ? | 1968 ?
Venezuela | President of the Chamber of Deputies | Prof. Jorge Dargen ? | 1968 ?

Question: who was the first american to enter their respective office?
Answer: Richard B. Russell

Question: what is the total number of states listed on the chart?
Answer: 22

Question: sir stanley robinson and sir theodore brancker both served for which state?
Answer: Barbados

Question: how many people entered office in 1970?
Answer: 10

Question: find the country of the first speaker whose name is unknown.
Answer: Bolivia