what was the average change in unrealized gains on derivative instruments?
Important information:
table_1: the changes in fair value of derivatives of 2008 is $ 7 ; the changes in fair value of derivatives of 2007 is $ -1 ( 1 ) ; the changes in fair value of derivatives of 2006 is $ 11 ;
table_2: the adjustment for net gains/ ( losses ) realized and included in net income of 2008 is 12 ; the adjustment for net gains/ ( losses ) realized and included in net income of 2007 is -2 ( 2 ) ; the adjustment for net gains/ ( losses ) realized and included in net income of 2006 is -12 ( 12 ) ;
table_3: the change in unrealized gains on derivative instruments of 2008 is $ 19 ; the change in unrealized gains on derivative instruments of 2007 is $ -3 ( 3 ) ; the change in unrealized gains on derivative instruments of 2006 is $ -1 ( 1 ) ;
Reasoning Steps:
Step: average2-1(change in unrealized gains on derivative instruments, none) = 5
Program:
table_average(change in unrealized gains on derivative instruments, none)
Program (Nested):
table_average(change in unrealized gains on derivative instruments, none)

Please answer the following financial question based on the context provided. Make sure to give the answer in raw number, not in percentage and without any units. If the question asks for percentage the value should be less than 1
Context:
table of contents notes to consolidated financial statements ( continued ) note 6 2014shareholders 2019 equity ( continued ) the following table summarizes activity in other comprehensive income related to derivatives , net of taxes , held by the company during the three fiscal years ended september 27 , 2008 ( in millions ) : the tax effect related to the changes in fair value of derivatives was $ ( 5 ) million , $ 1 million , and $ ( 8 ) million for 2008 , 2007 , and 2006 , respectively . the tax effect related to derivative gains/losses reclassified from other comprehensive income to net income was $ ( 9 ) million , $ 2 million , and $ 8 million for 2008 , 2007 , and 2006 , respectively . employee benefit plans 2003 employee stock plan the 2003 employee stock plan ( the 201c2003 plan 201d ) is a shareholder approved plan that provides for broad-based grants to employees , including executive officers . based on the terms of individual option grants , options granted under the 2003 plan generally expire 7 to 10 years after the grant date and generally become exercisable over a period of four years , based on continued employment , with either annual or quarterly vesting . the 2003 plan permits the granting of incentive stock options , nonstatutory stock options , rsus , stock appreciation rights , stock purchase rights and performance-based awards . as of september 27 , 2008 , approximately 50.3 million shares were reserved for future issuance under the 2003 1997 employee stock option plan in august 1997 , the company 2019s board of directors approved the 1997 employee stock option plan ( the 201c1997 plan 201d ) , a non-shareholder approved plan for grants of stock options to employees who are not officers of the company . based on the terms of individual option grants , options granted under the 1997 plan generally expire 7 to 10 years after the grant date and generally become exercisable over a period of four years , based on continued employment , with either annual or quarterly vesting . in october 2003 , the company terminated the 1997 plan and no new options can be granted from this plan . 1997 director stock option plan in august 1997 , the company 2019s board of directors adopted a director stock option plan ( the 201cdirector plan 201d ) for non-employee directors of the company , which was approved by shareholders in 1998 . pursuant to the director plan , the company 2019s non-employee directors are granted an option to acquire 30000 shares of common stock upon their initial election to the board ( 201cinitial options 201d ) . the initial options vest and become exercisable in three equal annual installments on each of the first through third anniversaries of the grant date . on the fourth anniversary of a non-employee director 2019s initial election to the board and on each subsequent anniversary thereafter , the director will be entitled to receive an option to acquire 10000 shares of common stock ( 201cannual options 201d ) . annual options are fully vested and immediately exercisable on their date of grant . options granted under the director plan expire 10 years after the grant date . as of september 27 , 2008 , approximately 290000 shares were reserved for future issuance under the director plan . rule 10b5-1 trading plans the following executive officers , timothy d . cook , peter oppenheimer , philip w . schiller , and bertrand serlet , have entered into trading plans pursuant to rule 10b5-1 ( c ) ( 1 ) of the securities exchange act of 1934 , as amended ( the 201cexchange act 201d ) , as of november 1 , 2008 . a trading plan is a written document that .
Table
                                                                         | 2008 | 2007       | 2006      
changes in fair value of derivatives                                     | $ 7  | $ -1 ( 1 ) | $ 11      
adjustment for net gains/ ( losses ) realized and included in net income | 12   | -2 ( 2 )   | -12 ( 12 )
change in unrealized gains on derivative instruments                     | $ 19 | $ -3 ( 3 ) | $ -1 ( 1 )
.
Question: 
what was the average change in unrealized gains on derivative instruments?
Important information:
table_1: the changes in fair value of derivatives of 2008 is $ 7 ; the changes in fair value of derivatives of 2007 is $ -1 ( 1 ) ; the changes in fair value of derivatives of 2006 is $ 11 ;
table_2: the adjustment for net gains/ ( losses ) realized and included in net income of 2008 is 12 ; the adjustment for net gains/ ( losses ) realized and included in net income of 2007 is -2 ( 2 ) ; the adjustment for net gains/ ( losses ) realized and included in net income of 2006 is -12 ( 12 ) ;
table_3: the change in unrealized gains on derivative instruments of 2008 is $ 19 ; the change in unrealized gains on derivative instruments of 2007 is $ -3 ( 3 ) ; the change in unrealized gains on derivative instruments of 2006 is $ -1 ( 1 ) ;
Reasoning Steps:
Step: average2-1(change in unrealized gains on derivative instruments, none) = 5
Program:
table_average(change in unrealized gains on derivative instruments, none)
Program (Nested):
table_average(change in unrealized gains on derivative instruments, none)
