Please answer the given financial question based on the context.
Context: intermodal 2013 decreased volumes and fuel surcharges reduced freight revenue from intermodal shipments in 2009 versus 2008 . volume from international traffic decreased 24% ( 24 % ) in 2009 compared to 2008 , reflecting economic conditions , continued weak imports from asia , and diversions to non-uprr served ports . additionally , continued weakness in the domestic housing and automotive sectors translated into weak demand in large sectors of the international intermodal market , which also contributed to the volume decline . conversely , domestic traffic increased 8% ( 8 % ) in 2009 compared to 2008 . a new contract with hub group , inc. , which included additional shipments , was executed in the second quarter of 2009 and more than offset the impact of weak market conditions in the second half of 2009 . price increases and fuel surcharges generated higher revenue in 2008 , partially offset by lower volume levels . international traffic declined 11% ( 11 % ) in 2008 , reflecting continued softening of imports from china and the loss of a customer contract . notably , the peak intermodal shipping season , which usually starts in the third quarter , was particularly weak in 2008 . additionally , continued weakness in domestic housing and automotive sectors translated into weak demand in large sectors of the international intermodal market , which also contributed to lower volumes . domestic traffic declined 3% ( 3 % ) in 2008 due to the loss of a customer contract and lower volumes from less-than-truckload shippers . additionally , the flood-related embargo on traffic in the midwest during the second quarter hindered intermodal volume levels in 2008 . mexico business 2013 each of our commodity groups include revenue from shipments to and from mexico . revenue from mexico business decreased 26% ( 26 % ) in 2009 versus 2008 to $ 1.2 billion . volume declined in five of our six commodity groups , down 19% ( 19 % ) in 2009 , driven by 32% ( 32 % ) and 24% ( 24 % ) reductions in industrial products and automotive shipments , respectively . conversely , energy shipments increased 9% ( 9 % ) in 2009 versus 2008 , partially offsetting these declines . revenue from mexico business increased 13% ( 13 % ) to $ 1.6 billion in 2008 compared to 2007 . price improvements and fuel surcharges contributed to these increases , partially offset by a 4% ( 4 % ) decline in volume in 2008 compared to 2007 . operating expenses millions of dollars 2009 2008 2007 % (  % ) change 2009 v 2008 % (  % ) change 2008 v 2007 .
|millions of dollars|2009|2008|2007|% (  % ) change 2009 v 2008|% (  % ) change 2008 v 2007|
|compensation and benefits|$ 4063|$ 4457|$ 4526|( 9 ) % (  % )|( 2 ) % (  % )|
|fuel|1763|3983|3104|-56 ( 56 )|28|
|purchased services and materials|1614|1902|1856|-15 ( 15 )|2|
|depreciation|1444|1387|1321|4|5|
|equipment and other rents|1180|1326|1368|-11 ( 11 )|-3 ( 3 )|
|other|687|840|733|-18 ( 18 )|15|
|total|$ 10751|$ 13895|$ 12908|( 23 ) % (  % )|8% ( 8 % )|
2009 intermodal revenue international domestic .
Question: what was the average yearly decline in international traffic in 2008 and in 2009?


Answer: The answer is:0.175