From the graph,
The number of commercial banks in $$1969$$ is $$=90$$.
The number of commercial banks in $$1976$$ is $$=100$$.
The number of commercial banks in $$1977$$ is $$=130$$.
The number of commercial banks in $$1978$$ is $$=140$$.
The number of commercial banks in $$1979$$ is $$=140$$.
The number of commercial banks in $$1980$$ is $$=150$$.
The number of commercial banks in $$1981$$ is $$=190$$.
The number of commercial banks in $$1982$$ is $$=210$$.
The number of commercial banks in $$1983$$ is $$=230$$.