Differences in EG??

So I'm trying to figure out which EG my 1993 Civic HB DX is...but im having some troubles here..can someone tell me what the difference is between a
EG1 D15B JDM All 3-door/4-door/CR-X
EG4 D15B JDM All 3-door/4-door/CR-X
EG8 D15B JDM All 3-door/4-door/CR-X
Is it perhaps maybe just a difference in year? Or where the car itself was manufactured? Mine came from the Canadian (><) Honda Factory so yet again /shrug
P.S. Why am I only able to see some of the pictures ya'll post? Gets me frustrated! Maybe cause I on secure Gov't puter...damnit
EG1 D15B JDM All 3-door/4-door/CR-X
EG4 D15B JDM All 3-door/4-door/CR-X
EG8 D15B JDM All 3-door/4-door/CR-X
Is it perhaps maybe just a difference in year? Or where the car itself was manufactured? Mine came from the Canadian (><) Honda Factory so yet again /shrug

P.S. Why am I only able to see some of the pictures ya'll post? Gets me frustrated! Maybe cause I on secure Gov't puter...damnit
We find three kittens and a squirrel cowering in fear inside one of the massive front air intakes.