This table shows historical data on the hourly minimum wage in Rhode Island. year wage
1988 3.65
1991 4.24
1992 4.45
1997 5.15
2000 5.65
2001 6.15
2004 6.75
2007 7.40
What was the rate of change in the hourly minimum wage in Rhode Island from 1992 - 1997?

a$0.14 per year
b$0.70 per year
c$1.92 per year
d$7.14 per year