what is the total number of states listed on the chart?
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col : state | title | name | entered office row 1 : barbados | president of the senate | sir stanley robinson | 1966 row 2 : barbados | speaker of the house of assembly | sir theodore brancker | 1961 row 3 : bolivia | president of the senate | ? | 1970 row 4 : bolivia | president of the chamber of deputies | ? | 1970 row 5 : brazil | president of the senate | joão cleofas de oliveira | 1970 row 6 : brazil | president of the chamber of deputies | geraldo freire da silva | 1970 row 7 : canada | speaker of the senate | hon. jean-paul deschatelets | september 5, 1968 row 8 : canada | speaker of the house of commons | hon. lucien lamoureux | january 18, 1966 row 9 : chile | president of the senate | tomás pablo elorza | 1969 row 10 : chile | president of the chamber of deputies | fernando humberto andrés sanhueza herbarge | july 20, 1970 row 11 : colombia | president of the senate | eduardo abuchaibe ramírez | 1970 row 12 : colombia | president of the chamber of representatives | ? | ? row 13 : costa rica | president of the congress | daniel oduber quirós | 1970 row 14 : dominican republic | president of assembly | pedro váldez ? | 1966 ? row 15 : ecuador | president of the senate | ? | ? row 16 : ecuador | president of the chamber of deputies | ? | ? row 17 : el salvador | president of the legislative assembly | dr. benjamin iteriano ? | 1970 ? row 18 : guatemala | president of the congress | mario sandoval alarcón | 1970 row 19 : guyana | speaker of the legislative assembly | hon. rahman bacchus gajraj | 1968 row 20 : haiti | president of the national assembly | ulrick st. louis ? | ? row 21 : honduras | president of the national congress | lic. mario rivera lópez | 1965 row 22 : jamaica | president of the senate | g. s. ranglin | december 7, 1962 row 23 : jamaica | speaker of the house of representatives | eugene parkinson | 1967 row 24 : mexico | president of the senate | lic. manuel aguirre[disambiguation needed] | 1967 ? row 25 : mexico | president of the federal chamber of deputies | lic. luis farias ? | 1967 ? row 26 : nicaragua | president of the senate | dr. adrían cuadra gutiérrez |  row 27 : nicaragua | president of the chamber of deputies | dr. orlando montenegro ? |  row 28 : paraguay | president of the council of state | dr. juan ramón chavez ? | 1967 ? row 29 : trinidad and tobago | president of the senate | j. hamilton maurice | december 29, 1961 row 30 : trinidad and tobago | speaker of the house of representatives | a. c. thomasos | december 29, 1961 row 31 : usa | president of the senate (the vice president of the united states of america) | spiro agnew | january 20, 1969 row 32 : usa | president pro tempore of the senate | richard b. russell | january 2, 1969 row 33 : usa | speaker of the house of representatives | john william mccormack | january 10, 1962 row 34 : puerto rico | president of the senate | rafael hernández colón | 1969 row 35 : puerto rico | speaker of the house of representatives | angel viera martínez | january 13, 1969 row 36 : uruguay | president of the senate (the vice president of uruguay) | dr. alberto abdala | december 6, 1967 row 37 : uruguay | president of the chamber of deputies | fernando elichirigoity | march 1, 1970 row 38 : venezuela | president of the senate | dr. josé a. pérez díaz ? | 1968 ? row 39 : venezuela | president of the chamber of deputies | prof. jorge dargen ? | 1968 ?
what is the total number of states listed on the chart?
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 ?
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