Since 1981, there have been four major government shutdowns

Source: Congressional Research Service
Note: Full days are counted as the number of days for which no budget authority was available, beginning after the final day on which budget authority was available and ending the day before new budget authority was enacted. For example, for the first FY1996 funding gap, the full days of the gap were from November 14, 1995, through November 18, 1995, for a total of five full days.