All corner bulbs out at once?

I have a '94 Accord Sedan EX. I bought aftermarket bulbs a couple of years ago for my sidemarker/parking lights (corner lamps). There are two bulbs per lamp. They lasted me this long.

My question is what are the odds that all four of those bulbs would go out at once? Could they actually have burnt out all at once? Could it be a fuse that went out? Or vandalism somehow? And which fuse is it? My owners manual is sketchy.

Also where can I get new bulbs if needed? All the stores around me for some weird reason discontinued that particular bulb. Can't find 3562's in Sylvania or GE.

Thanx to anyone for helping this extreme novice.

to find the proper fuse just look at the diagram piece that covers the fuse box. you have one fuse box on the interior and one under the hood. i'm not even gonna go outside to check because i am sure that you should be able to find the fuse if you spend a minute or two looking.