Table:
text: Sistema de Radiodifusoras Culturales Indigenistas
Stations
Stations
Call_sign Launched Transmitting_from Coverage Languages Frequency
XEANT 28 September 1990 San Luis Potosí ( Tancanhuitz de Santos ) San Luis Potosí Hidalgo Querétaro Veracruz Nahuatl Pame Wastek 770 AM
XEGLO 18 November 1990 Oaxaca ( Guelatao de Juárez ) Oaxaca Veracruz Zapotec Mixe Chinantec 780 AM
XEZON 20 November 1991 Veracruz ( Zongolica ) Veracruz Oaxaca Puebla Tlaxcala Nahuatl 1360 AM
XEOJN 14 December 1991 Oaxaca ( San Lucas Ojitlán ) Oaxaca Puebla Veracruz Mazatec Cuicatec Chinantec 950 AM
XEJMN 3 April 1992 Nayarit ( Jesús María ) Nayarit Jalisco Durango Zacatecas Cora Huichol Tepehuano Nahuatl 750 AM
XEJAM 5 May 1994 Oaxaca ( Santiago Jamiltepec ) Oaxaca Guerrero Mixtec Amuzgo Chatino 1260 AM

Question: What is the station start date in Cora Huichol Tepehuano Nahuatl language for Indigenous cultural broadcasting system?