Year Value 2004 $8000 2005 $12,000 2006 $16,000 2007 $20,000 2008 $24,000 The table shows the value of Susie's bank account during a 5-year period. At what rate has her account value been growing?
A) $16,000 per year
B) $8,000 per year
C) $4,000 per year
D) $1,000 per year