Steam hours played

Has anybody else have really weird hours played for each of your games? For example I did one playthrough of Bioshock 1 and I have 400 hours played and I know I don't suck that bad.

gmod, 452 hours(probably pretty close tbh)
chivalry: Medival warfare: 213 hours(should be roughly double this)
Skyrim: 211 hours
guns of icarus online: 116 hours
hacker evolution: 74 hours(BS, I played this for like 5 mins)

Skyrim: 449 hrs.  2 play through's
Shogun 2 Total war: 366 hrs.  countless campaigns
Empire total war: 162.  Countless campaigns
planetside 2:  109 hrs
Rome total war 2: 45 hrs.  one campaign
Oblivion:  33 hrs.  part of a playthrough
fallout 3:  29 hrs.  one playthru
Star Wars Empire at War Gold:  18 hrs. 
KOTOR:  12 hrs
BF2:  10 hrs
Chivalry Medieval warfare:  6 hrs
Napoleon total war:  4 hours
Arma 3:  4 hrs

Arma 3: 96hr (no surprise)
Borderlands: 74hr (3 playthroughs)
Borderlands 2: 56hr (longgame)
CSS: 32hr (surprising)
Dead Island: 14hr (ill never get those back)
Dota 2: 26hr (all beta)
Gmod: 420hr (first game i had)
GTA4: 77hr (idk how)
Killing Floor: 22hr (fun as fuck)
Payday 2: 27hr (wow)
Planetside 2: 33hr (probably all from last 2 weeks)
Saints row 4: 26hr (1 playthru)
Saints row 3: 33hr (1 1/2 playthru)
Terraria: 68hrs (still havent done an 1.2 playthru)
Torchlight II: 26hr (not even close to done)
Shogun 2: 22hr (huh)

i sometimes have that....i only started up Spec Ops: The Line like for 5 minutes, yet it says ive played it for 72 hours allready lel

Yea for some reason all of the games ive played has 80+ hours even tho half of them i played like 2 hrs and got bored of them

I got at least 1500 hours total for all my games