Past Sede Vacante periods

How long might we have to wait before we hear the Habemus Papam? The Transalpine Redemptorists have provided a list of some of the historic time periods. Keep in mind that these past periods started with the death of the preceding pope. Today, March 12th 2013, we are on the 12th day.

1799: Pius VI - Pius VII ~207 days (longest)
1823: Pius VII - Leo XII ~39 days
1829: Leo XII - Pius VIII ~49 days
1830: Pius VIII - Gregory XVI ~63 days
1846: Gregory XVI - Pius IX ~15 days
1878: Pius IX - Leo XIII ~13 days (shortest)
1903: Leo XIII - Pius X ~15 days
1914: Pius X - Benedict XV ~14 days
1922: Benedict XV - Pius XI ~15 days
1939: Pius XI - Pius XII ~20 days
1958: Pius XII - John XXIII ~19 days
1963: John XXIII - Paul VI ~18 days
1978: Paul VI - John Paul I ~20 days
1978: John Paul I - John Paul II ~18 days
2005: John Paul II - Benedict XVI ~17 days
2013: Benedict XVI - ??