The figure below shows average annual growth rates in real GDP per hour worked in the United States.Based on the data from the figure, which one of the following statements is false?
选项：

A:If the growth rate of real GDP per hour worked had continued to grow from 1974 to 1995 at the same rate it had been growing from 1950 to 1973, it would have been higher than it actually was.
B:For more than 20 years, from 1974 to 1995, the growth rate of real GDP per hour worked slowed.
C:The growth rate of real GDP per hour worked increased from 1800 through the mid-1970s.
D:The growth rate of real GDP per hour worked has continually accelerated over time