The table gives the total number of honeybee colonies in the United States since 1989.

Years since 1989 Honeybee Colonies (millions)
0 3.6
4 3.1
8 2.8
12 2.65
16 2.6
20 2.25

Fit an exponential model to this data.

The exponential model suggests that honeybee colonies have ____ per year. If this trend continues, the number of honeybee colonies 40 years after 1989 will be around ____ million. Because the correlation coefficient indicates a ____ correlation between the model and the data, predictions made by this model ____ .