Given the information below, please estimate the constant growth rate after year $5.$

Required rate of return on equity: $12\%($constant$)$

P$0=$ $$30$

D$0=$$$2$

g$1=10\%$

g$2=15\%$

g$3=20\%$

g$4=25\%$

g$5=20\%$

Growth rate after year $5$ is expected to be constant forever.