our refineries processed 944 mbpd of crude oil and 207 mbpd of other charge and blend stocks . the table below sets forth the location and daily crude oil refining capacity of each of our refineries as of december 31 , 2008 . crude oil refining capacity ( thousands of barrels per day ) 2008 .

2008: garyville louisiana: 256
catlettsburg kentucky: 226
robinson illinois: 204
detroit michigan: 102
canton ohio: 78
texas city texas: 76
st . paul park minnesota: 74
total: 1016

our refineries include crude oil atmospheric and vacuum distillation , fluid catalytic cracking , catalytic reforming , desulfurization and sulfur recovery units . the refineries process a wide variety of crude oils and produce numerous refined products , ranging from transportation fuels , such as reformulated gasolines , blend- grade gasolines intended for blending with fuel ethanol and ultra-low sulfur diesel fuel , to heavy fuel oil and asphalt . additionally , we manufacture aromatics , cumene , propane , propylene , sulfur and maleic anhydride . our refineries are integrated with each other via pipelines , terminals and barges to maximize operating efficiency . the transportation links that connect our refineries allow the movement of intermediate products between refineries to optimize operations , produce higher margin products and utilize our processing capacity efficiently . our garyville , louisiana , refinery is located along the mississippi river in southeastern louisiana . the garyville refinery processes heavy sour crude oil into products such as gasoline , distillates , sulfur , asphalt , propane , polymer grade propylene , isobutane and coke . in 2006 , we approved an expansion of our garyville refinery by 180 mbpd to 436 mbpd , with a currently projected cost of $ 3.35 billion ( excluding capitalized interest ) . construction commenced in early 2007 and is continuing on schedule . we estimate that , as of december 31 , 2008 , this project is approximately 75 percent complete . we expect to complete the expansion in late 2009 . our catlettsburg , kentucky , refinery is located in northeastern kentucky on the western bank of the big sandy river , near the confluence with the ohio river . the catlettsburg refinery processes sweet and sour crude oils into products such as gasoline , asphalt , diesel , jet fuel , petrochemicals , propane , propylene and sulfur . our robinson , illinois , refinery is located in the southeastern illinois town of robinson . the robinson refinery processes sweet and sour crude oils into products such as multiple grades of gasoline , jet fuel , kerosene , diesel fuel , propane , propylene , sulfur and anode-grade coke . our detroit , michigan , refinery is located near interstate 75 in southwest detroit . the detroit refinery processes light sweet and heavy sour crude oils , including canadian crude oils , into products such as gasoline , diesel , asphalt , slurry , propane , chemical grade propylene and sulfur . in 2007 , we approved a heavy oil upgrading and expansion project at our detroit , michigan , refinery , with a current projected cost of $ 2.2 billion ( excluding capitalized interest ) . this project will enable the refinery to process additional heavy sour crude oils , including canadian bitumen blends , and will increase its crude oil refining capacity by about 15 percent . construction began in the first half of 2008 and is presently expected to be complete in mid-2012 . our canton , ohio , refinery is located approximately 60 miles southeast of cleveland , ohio . the canton refinery processes sweet and sour crude oils into products such as gasoline , diesel fuels , kerosene , propane , sulfur , asphalt , roofing flux , home heating oil and no . 6 industrial fuel oil . our texas city , texas , refinery is located on the texas gulf coast approximately 30 miles south of houston , texas . the refinery processes sweet crude oil into products such as gasoline , propane , chemical grade propylene , slurry , sulfur and aromatics . our st . paul park , minnesota , refinery is located in st . paul park , a suburb of minneapolis-st . paul . the st . paul park refinery processes predominantly canadian crude oils into products such as gasoline , diesel , jet fuel , kerosene , asphalt , propane , propylene and sulfur. .

Questions:
as of december 31, 2008, what was the amount of the crude oil refining capacity that was located in detroit michigan?
and what was that crude oil refining capacity?
what percentage, then, did that amount represent in relation to this capacity value?
and concerning the garyville refinery, what was its capacity in 2006, with the approved expansion?
what was it before the expansion?
what was, then, the impact of that expansion in the capacity of that refinery?

Answers:
102
1016
10.0%
436
180
256