For a worker who pays T1 and later receives a benefit B2, the rate of return is defined as r* = ______, so in this table, r* = ______%.

For a worker who pays T1 and later receives a benefit B2, the rate of return is defined as r* = ______, so in this table, r* = ______%.

For a worker who pays T1 and later receives a benefit B2, the rate of return is defined as r* = ______, so in this table, r* = ______%.

For a worker who pays T1 and later receives a benefit B2, the rate of return is defined as r* = ______, so in this table, r* = ______%.