a black-scholes option-pricing model was used for purposes of estimating the fair value of state street 2019s employee stock options at the grant date .
the following were the weighted average assumptions for the years ended december 31 , 2001 , 2000 and 1999 , respectively : risk-free interest rates of 3.99% ( 3.99 % ) , 5.75% ( 5.75 % ) and 5.90% ( 5.90 % ) ; dividend yields of 1.08% ( 1.08 % ) , .73% ( .73 % ) and .92% ( .92 % ) ; and volatility factors of the expected market price of state street common stock of .30 , .30 and .30 .
the estimated weighted average life of the stock options granted was 4.1 years for the years ended december 31 , 2001 , 2000 and 1999 .
o t h e r u n r e a l i z e d c o m p r e h e n s i v e i n c o m e ( l o s s ) at december 31 , the components of other unrealized comprehensive income ( loss ) , net of related taxes , were as follows: .

(Dollars in millions)
2001
2000
Unrealized gain on available-for-sale securities
$ 96
$ 19
Foreign currency translation
(27)
(20)
Other
1
Total
$ 70
$ (1)

note j shareholders 2019 rights plan in 1988 , state street declared a dividend of one preferred share purchase right for each outstanding share of common stock .
in 1998 , the rights agreement was amended and restated , and in 2001 , the rights plan was impacted by the 2-for-1 stock split .
accordingly , a right may be exercised , under certain conditions , to purchase one eight-hundredths share of a series of participating preferred stock at an exercise price of $ 132.50 , subject to adjustment .
the rights become exercisable if a party acquires or obtains the right to acquire 10% ( 10 % ) or more of state street 2019s common stock or after commencement or public announcement of an offer for 10% ( 10 % ) or more of state street 2019s common stock .
when exercisable , under certain conditions , each right entitles the holder thereof to purchase shares of common stock , of either state street or of the acquirer , having a market value of two times the then-current exercise price of that right .
the rights expire in september 2008 , and may be redeemed at a price of $ .00125 per right , subject to adjustment , at any time prior to expiration or the acquisition of 10% ( 10 % ) of state street 2019s common stock .
under certain circumstances , the rights may be redeemed after they become exercisable and may be subject to automatic redemption .
note k regulatory matters r e g u l a t o r y c a p i t a l state street is subject to various regulatory capital requirements administered by federal banking agencies .
failure to meet minimum capital requirements can initiate certain mandatory and discretionary actions by regulators that , if undertaken , could have a direct material effect on state street 2019s financial condition .
under capital adequacy guidelines , state street must meet specific capital guidelines that involve quantitative measures of state street 2019s assets , liabilities and off-balance sheet items as calculated under regulatory accounting practices .
state street 2019s capital amounts and classification are subject to qualitative judgments by the regulators about components , risk weightings and other factors .
42 state street corporation .

Question: Analyse this data from a financial earnings document. what is the net change in the balance of the other unrealized comprehensive income in 2001?
Choices:
1.1
71.0
69
31
51
Correct choice index: 1