The table gives the daily consumption of oil in the United States, in millions of barrels, measured in two-year intervals, from the beginning of 1987 to the beginning of 2007.
Use Simpson’s Rule to estimate the average daily consumption of oil over the period in question.
Year-Consumption
1987-16.7
1989-17.3
1991-16.7
1993-17.2
1995-17.7
1997-18.6
1999-19.5
2001-19.6
2003-20.0
2005-20.8
2007-20.7
Source: U.S. Energy Information Administration
Be detailed.