These rates imply investors expectation about the rates for the
given maturity. The maturity for which investors are more
interested would have lower interest rate due to high demand among
investors to invest.
It is visible from the above yield curve that interest rate for
longer maturity is higher than shorter maturity. Investors have
higher preference for shorter duration and they are not willing to
invest for longer duration due to risk associated with it. Hence in
order to compensate for the same, issuers will offer higher
interest rate for longer maturities.