Please read the following table in HTML format from a webpage and then answer the question in detail according to the table. Each table cell is defined by a <td> and a </td> tag. Each table row starts with a <tr> and ends with a </tr> tag. 'rowspan=m' and 'colspan=n' represents a cell spaning over 'm' rows and 'n' columns.

Webpage title:
List of commanders-in-chief of the Chilean Air Force
Table title:

Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Portrait </th><th colspan=1 rowspan=1 > Rank </th><th colspan=1 rowspan=1 > Name </th><th colspan=1 rowspan=1 > Entered Office </th><th colspan=1 rowspan=1 > Exited Office </th><th colspan=1 rowspan=1 > Position </th></tr>
<tr> <td colspan=1 rowspan=1 > Arturo Merino Benítez.JPG </td><td colspan=1 rowspan=1 > Air Commodore </td><td colspan=1 rowspan=1 > Arturo Merino Benítez </td><td colspan=1 rowspan=1 > 1930 </td><td colspan=1 rowspan=1 > 1931 </td><td colspan=1 rowspan=1 > Air Force Commander-in-chief </td></tr>
<tr> <td colspan=1 rowspan=1 > - </td><td colspan=1 rowspan=1 > Colonel of Aviation </td><td colspan=1 rowspan=1 > Adirio Jessen Ahumada </td><td colspan=1 rowspan=1 > 1932 </td><td colspan=1 rowspan=1 > 1932 </td><td colspan=1 rowspan=1 > Air Force Commander-in-chief </td></tr>
<tr> <td colspan=1 rowspan=1 > - </td><td colspan=1 rowspan=1 > Squadron Commander </td><td colspan=1 rowspan=1 > Ramón Vergara Montero </td><td colspan=1 rowspan=1 > 1932 </td><td colspan=1 rowspan=1 > 1932 </td><td colspan=1 rowspan=1 > Air Force Commander-in-chief </td></tr>
<tr> <td colspan=1 rowspan=1 > - </td><td colspan=1 rowspan=1 > Group Commander </td><td colspan=1 rowspan=1 > Marmaduque Grove Vallejos </td><td colspan=1 rowspan=1 > 1932 </td><td colspan=1 rowspan=1 > 1932 </td><td colspan=1 rowspan=1 > Air Force Commander-in-chief </td></tr>
<tr> <td colspan=1 rowspan=1 > Capitán Diego Aracena.JPG </td><td colspan=1 rowspan=1 > Air General </td><td colspan=1 rowspan=1 > Diego Aracena Aguilar </td><td colspan=1 rowspan=1 > 1932 </td><td colspan=1 rowspan=1 > 1939 </td><td colspan=1 rowspan=1 > Air Force Commander-in-chief </td></tr>
<tr> <td colspan=1 rowspan=1 > - </td><td colspan=1 rowspan=1 > Air General </td><td colspan=1 rowspan=1 > Armando Castro López </td><td colspan=1 rowspan=1 > 1939 </td><td colspan=1 rowspan=1 > 1943 </td><td colspan=1 rowspan=1 > Air Force Commander-in-chief </td></tr>
<tr> <td colspan=1 rowspan=1 > - </td><td colspan=1 rowspan=1 > Air General </td><td colspan=1 rowspan=1 > Manuel Tovarías Arroyo </td><td colspan=1 rowspan=1 > 1943 </td><td colspan=1 rowspan=1 > 1946 </td><td colspan=1 rowspan=1 > Air Force Commander-in-chief </td></tr>
<tr> <td colspan=1 rowspan=1 > - </td><td colspan=1 rowspan=1 > Air General </td><td colspan=1 rowspan=1 > Oscar Herreros Walker </td><td colspan=1 rowspan=1 > 1946 </td><td colspan=1 rowspan=1 > 1947 </td><td colspan=1 rowspan=1 > Air Force Commander-in-chief </td></tr>
<tr> <td colspan=1 rowspan=1 > - </td><td colspan=1 rowspan=1 > Air General </td><td colspan=1 rowspan=1 > Aurelio Celedón Palma </td><td colspan=1 rowspan=1 > 1947 </td><td colspan=1 rowspan=1 > 1952 </td><td colspan=1 rowspan=1 > Air Force Commander-in-chief </td></tr>
<tr> <td colspan=1 rowspan=1 > - </td><td colspan=1 rowspan=1 > Air General </td><td colspan=1 rowspan=1 > Armando Ortíz Ramírez </td><td colspan=1 rowspan=1 > 1952 </td><td colspan=1 rowspan=1 > 1955 </td><td colspan=1 rowspan=1 > Air Force Commander-in-chief </td></tr>
<tr> <td colspan=1 rowspan=1 > - </td><td colspan=1 rowspan=1 > Air General </td><td colspan=1 rowspan=1 > Renato García Vergara </td><td colspan=1 rowspan=1 > 1955 </td><td colspan=1 rowspan=1 > 1955 </td><td colspan=1 rowspan=1 > Air Force Commander-in-chief </td></tr>
<tr> <td colspan=1 rowspan=1 > - </td><td colspan=1 rowspan=1 > Air General </td><td colspan=1 rowspan=1 > Diego Barros Ortíz </td><td colspan=1 rowspan=1 > 1955 </td><td colspan=1 rowspan=1 > 1961 </td><td colspan=1 rowspan=1 > Air Force Commander-in-chief </td></tr>
<tr> <td colspan=1 rowspan=1 > - </td><td colspan=1 rowspan=1 > Air General </td><td colspan=1 rowspan=1 > Eduardo Jensen Franke </td><td colspan=1 rowspan=1 > 1961 </td><td colspan=1 rowspan=1 > 1964 </td><td colspan=1 rowspan=1 > Air Force Commander-in-chief </td></tr>
<tr> <td colspan=1 rowspan=1 > - </td><td colspan=1 rowspan=1 > Air General </td><td colspan=1 rowspan=1 > Máximo Errázuriz Ward </td><td colspan=1 rowspan=1 > 1964 </td><td colspan=1 rowspan=1 > 1969 </td><td colspan=1 rowspan=1 > Air Force Commander-in-chief </td></tr>
<tr> <td colspan=1 rowspan=1 > - </td><td colspan=1 rowspan=1 > Air General </td><td colspan=1 rowspan=1 > Carlos Guerraty Villalobos </td><td colspan=1 rowspan=1 > 1969 </td><td colspan=1 rowspan=1 > 1970 </td><td colspan=1 rowspan=1 > Air Force Commander-in-chief </td></tr>
<tr> <td colspan=1 rowspan=1 > - </td><td colspan=1 rowspan=1 > Air General </td><td colspan=1 rowspan=1 > César Ruiz Danyau </td><td colspan=1 rowspan=1 > 1970 </td><td colspan=1 rowspan=1 > 1973 </td><td colspan=1 rowspan=1 > Air Force Commander-in-chief </td></tr>
<tr> <td colspan=1 rowspan=1 > - </td><td colspan=1 rowspan=1 > Air General </td><td colspan=1 rowspan=1 > Gustavo Leigh Guzmán </td><td colspan=1 rowspan=1 > 1973 </td><td colspan=1 rowspan=1 > 1978 </td><td colspan=1 rowspan=1 > Air Force Commander-in-chief </td></tr>
<tr> <td colspan=1 rowspan=1 > Fernando Matthei.JPG </td><td colspan=1 rowspan=1 > Air General </td><td colspan=1 rowspan=1 > Fernando Matthei Aubel </td><td colspan=1 rowspan=1 > 1978 </td><td colspan=1 rowspan=1 > 1991 </td><td colspan=1 rowspan=1 > Air Force Commander-in-chief </td></tr>
<tr> <td colspan=1 rowspan=1 > - </td><td colspan=1 rowspan=1 > Air General </td><td class="highlighted"  colspan=1 rowspan=1 > Ramón Vega Hidalgo </td><td class="highlighted"  colspan=1 rowspan=1 > 1991 </td><td class="highlighted"  colspan=1 rowspan=1 > 1995 </td><td class="highlighted"  colspan=1 rowspan=1 > Air Force Commander-in-chief </td></tr>
<tr> <td colspan=1 rowspan=1 > - </td><td colspan=1 rowspan=1 > Air General </td><td colspan=1 rowspan=1 > Fernando Rojas Vender </td><td colspan=1 rowspan=1 > 1995 </td><td colspan=1 rowspan=1 > 1999 </td><td colspan=1 rowspan=1 > Air Force Commander-in-chief </td></tr>
<tr> <td colspan=1 rowspan=1 > - </td><td colspan=1 rowspan=1 > Air General </td><td colspan=1 rowspan=1 > Patricio Ríos Ponce </td><td colspan=1 rowspan=1 > 1999 </td><td colspan=1 rowspan=1 > 2002 </td><td colspan=1 rowspan=1 > Air Force Commander-in-chief </td></tr>
<tr> <td colspan=1 rowspan=1 > - </td><td colspan=1 rowspan=1 > Air General </td><td colspan=1 rowspan=1 > Osvaldo Sarabia Vilches </td><td colspan=1 rowspan=1 > 2002 </td><td colspan=1 rowspan=1 > 2006 </td><td colspan=1 rowspan=1 > Air Force Commander-in-chief </td></tr>
<tr> <td colspan=1 rowspan=1 > - </td><td colspan=1 rowspan=1 > Air General </td><td colspan=1 rowspan=1 > Ricardo Ortega Perrier </td><td colspan=1 rowspan=1 > 2006 </td><td colspan=1 rowspan=1 > 2010 </td><td colspan=1 rowspan=1 > Air Force Commander-in-chief </td></tr>
<tr> <td colspan=1 rowspan=1 > - </td><td colspan=1 rowspan=1 > Air General </td><td colspan=1 rowspan=1 > Jorge Rojas Ávila </td><td colspan=1 rowspan=1 > 2010 </td><td colspan=1 rowspan=1 > 2014 </td><td colspan=1 rowspan=1 > Air Force Commander-in-chief </td></tr>
<tr> <td colspan=1 rowspan=1 > - </td><td colspan=1 rowspan=1 > Air General </td><td colspan=1 rowspan=1 > Jorge Robles Mella </td><td colspan=1 rowspan=1 > 2014 </td><td colspan=1 rowspan=1 > 2018 </td><td colspan=1 rowspan=1 > Air Force Commander-in-chief </td></tr>
<tr> <td colspan=1 rowspan=1 > - </td><td colspan=1 rowspan=1 > Air General </td><td colspan=1 rowspan=1 > Arturo Merino Núñez </td><td colspan=1 rowspan=1 > 2018 </td><td colspan=1 rowspan=1 > Incumbent </td><td colspan=1 rowspan=1 > Air Force Commander-in-chief </td></tr>
</table>
Question:
Who was the commander in chief of the Chilean Air Force from 1991 to 1995?
Answer:
Ramón Vega Hidalgo was commander in chief of the Chilean Air Force from 1991 to 1995.