Nivel inferior:
- October 79 - January 80 ( oct.-en.. 1979) - -
- February - April ( feb.-abr.. 1980) - -
- May - July ( mayo-jul.. 1980) - -
- August - October ( ag.-oct.. 1980) - -
- November 80 - April 81 ( nov.-abr.. 1980) - -
- November 80 - April 81 ( nov.-abr.. 1981) - -
- May - July ( mayo-jul.. 1981) - -
- August - October ( ag.-oct.. 1981) - -
- November 81 - January 82 ( nov.-en.. 1981) - -
- February - March ( feb.-marzo. 1982) - -
- April - June ( abr.-jun.. 1982) - -
- July - September ( jul.-sept.. 1982) - -
- October - December ( oct.-dic.. 1982) - -
- January - March ( en.-marzo. 1983) - -
- April - June ( abr.-jun.. 1983) - -
- July - September ( jul.-sept.. 1983) - -
- October 83 - March 84 ( oct.-dic.. 1983) - -
- October 83 - March 84 ( en.-marzo. 1984) - -
- April - June ( abr.-jun.. 1984) - -
- July - September ( jul.-sept.. 1984) - -
- October - December ( oct.-dic.. 1984) - -
- January - March ( en.-marzo. 1985) - -
- April - June ( abr.-jun.. 1985) - -
- July - September ( jul.-sept.. 1985) - -
- October - December ( oct.-dic.. 1985) - -
- January - March ( en.-marzo. 1986) - -
- April - June ( abr.-jun.. 1986) - -
- July - September ( jul.-sept.. 1986) - -
- October - December ( oct.-dic.. 1986) - -
- January - March ( en.-marzo. 1987) - -
- April - June ( abr.-jun.. 1987) - -
- July - September ( jul.-sept.. 1987) - -
- October - December ( oct.-dic.. 1987) - -
- January - March ( en.-marzo. 1988) - -
- April - June ( abr.-jun.. 1988) - -
- July - September ( jul.-sept.. 1988) - -
- October - December ( oct.-dic.. 1988) - -
