Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Voting order | Country | Spokespersons | Commentator | Broadcaster |
| --- | --- | --- | --- | --- |
| 1.0 | Luxembourg | TBC | Jacques Navadic | Télé-Luxembourg |
| 2.0 | Netherlands | Pim Jacobs | Ageeth Scherphuis | NTS |
| 3.0 | Norway | Sverre Christophersen | Odd Grythe | NRK |
| 4.0 | Denmark | TBC | TBC | DR TV |
| 5.0 | Finland | Poppe Berg | Aarno Walli | Suomen Televisio |
| 6.0 | Austria | Ernst Grissemann | Emil Kollpacher | ORF |
| 7.0 | France | Claude Darget | Robert Beauvais | Première Chaîne RTF |
| 8.0 | United Kingdom | Michael Aspel | David Jacobs | BBC TV |
| 8.0 | United Kingdom | Michael Aspel | Tom Sloan | BBC Light Programme |
| 9.0 | Germany | Lia Wöhr | Hermann Rockmann | ARD Deutsches Fernsehen |
| 10.0 | Monaco | TBC | Robert Beauvais | Télé Monte Carlo |
| 11.0 | Portugal | Maria Manuela Furtado | Gomes Ferreira | RTP |
| 12.0 | Italy | Rosanna Vaudetti | Renato Tagliani | Programma Nazionale |
| 13.0 | Yugoslavia | TBC | Miloje Orlović | Televizija Beograd |
| 13.0 | Yugoslavia | TBC | Gordana Bonetti | Televizija Zagreb |
| 13.0 | Yugoslavia | TBC | Tomaž Terček | Televizija Ljubljana |
| 14.0 | Switzerland | Alexandre Burger | Theodor Haller | TV DRS |
| 14.0 | Switzerland | Alexandre Burger | Georges Hardy | TSR |
| 14.0 | Switzerland | Alexandre Burger | Giovanni Bertini | TSI |
| 15.0 | Belgium | André Hagon | Paule Herreman | RTB |
| 15.0 | Belgium | André Hagon | Herman Verelst | BRT |
| 16.0 | Spain | TBC | Federico Gallo | TVE |
Question:
how many people commentated where broadcaster is orf
Answer:
1.0