Assuming that population growth is approximately exponential, which of the two sets of data is most likely to represent the population (in millions) of a city over a 5-year period?

Year | 2000 | 2001 | 2002 | 2003 | 2004 |

Data I | 4 | 4.25 | 4.51 | 4.79 | 5.08 |

Data II | 4 | 4.1 | 4.4 | 4.9 | 5.6 |