A table of the US minimum wage for 6 different years is shown below.
| Year | US minimum wage (dollars per hour) |
|---|---|
| 1960 | 1.00 |
| 1970 | 1.60 |
| 1980 | 3.10 |
| 1990 | 3.80 |
| 2000 | 5.15 |
| 2010 | 7.25 |
Which of the following statements is best supported by the data in the table?
The US minimum wage increased by the same dollar amount every decade.
The US minimum wage has consistently increased over time.
The rate of increase of the US minimum wage has steadily accelerated.
The US minimum wage in 2020 will definitely be higher than
