How am I alive?

Sale 1: Bulk.

https://backpack.tf/profiles/76561198154700747#!/compare/1551052800/1551139200

https://backpack.tf/profiles/76561198369548702#!/compare/1550966400/1551139200

Sale 2: Bulk.

https://backpack.tf/profiles/76561198369548702#!/compare/1551139200/1551312000

https://backpack.tf/profiles/76561198050114720#!/compare/1551225600/1551312000

Sale 3: Bulk.

https://backpack.tf/profiles/76561198050114720#!/compare/1552608000/1552694400

https://backpack.tf/profiles/76561198047168424#!/compare/1552608000/1552694400

Sale 4: Untrace.

https://backpack.tf/profiles/76561198047168424#!/compare/1553212800/1553385600

https://backpack.tf/profiles/76561198261268231#!/compare/1553299200/1553385600

Sale 5: ~30 Keys.

Sold For Vivid Plasma Punk's Pomp (32.5)

(B/O Cap 30, https://bot.tf/stats/listings/Y77ZEG8Y)

https://backpack.tf/profiles/76561198261268231#!/compare/1553472000/1553558400

https://backpack.tf/profiles/76561198046921199#!/compare/1553472000/1553558400

Sale 6: Bulk.

https://backpack.tf/profiles/76561198046921199#!/compare/1553817600/1553904000

https://backpack.tf/profiles/76561198153088409#!/compare/1553817600/1553904000

Sale 7: Bulk.

https://backpack.tf/profiles/76561198153088409#!/compare/1553990400/1554076800

https://backpack.tf/profiles/76561198084126218#!/compare/1553990400/1554076800

Sale 8: ~29 Keys Pure.

https://backpack.tf/profiles/76561198084126218#!/compare/1553990400/1554249600

https://backpack.tf/profiles/76561198418104412#!/compare/1554076800/1554163200

Sale 9: ~36 Keys.

Sold For Nuts n' Bolts Otolaryngologist's Mirror (9) + Nuts n' Bolts Killer's Kabuto (13) + 14 Keys Pure. (14+13+9= 36)

https://backpack.tf/profiles/76561198138848488#!/compare/1555372800/1555459200

https://backpack.tf/profiles/76561198196597527#!/compare/1555372800/1555459200

Sale 10: Untrace/Low.

https://backpack.tf/profiles/76561198196597527#!/compare/1556236800/1556323200

https://backpack.tf/profiles/76561198138848488#!/compare/1556236800/1556323200

Sale 11: ~35 Keys.

Sold With Strange Professional Killstreak Australium Axtinguisher (7) For Disco Beat Down Human Cannonball (40) + 2 Keys. (42-7=35)

https://backpack.tf/profiles/76561198138848488#!/compare/1556496000/1556841600

https://backpack.tf/profiles/76561198279761078#!/compare/1556496000/1556841600

Sale 12: ~34 Keys.

Sold With Taunt: The Balloonibouncer (1) For Haunted Ghosts Outta' Sight (35).

https://backpack.tf/profiles/76561198279761078#!/compare/1556841600/1556928000

https://backpack.tf/profiles/76561197969363424#!/compare/1556841600/1556928000

Sale 13: ~35 Keys Pure.

https://backpack.tf/profiles/76561197969363424#!/compare/1557792000/1557964800

https://backpack.tf/profiles/76561198347573909#!/compare/1557878400/1557964800

Sale 14: Untrace.

https://backpack.tf/profiles/76561198315334238#!/compare/1554076800/1554163200

https://backpack.tf/profiles/76561198130834456#!/compare/1553990400/1554076800

Sale 15: Untrace/Low.

https://backpack.tf/profiles/76561198130834456#!/compare/1554076800/1554163200

https://backpack.tf/profiles/76561198438173007#!/compare/1554076800/1554249600

Sale 16: ~35 Keys.

Sold For Flaming Lantern Outta' Sight (27.5) + 7 Keys. (27.5+7=34.5)

https://backpack.tf/profiles/76561198438173007#!/compare/1554508800/1554595200

https://backpack.tf/profiles/76561198138848488#!/compare/1554508800/1554595200

Sale 17: ~39 Keys.

Sold With 6 Keys For Scorching Flames Tough Guy's Toque (44.5). (44.5-6=38.5)

https://backpack.tf/profiles/76561198138848488#!/compare/1554768000/1554854400

https://backpack.tf/profiles/76561198929314109#!/compare/1554768000/1554854400

Sale 18: Bulk.

https://backpack.tf/profiles/76561198929314109#!/compare/1555286400/1555632000

https://backpack.tf/profiles/76561198154211785#!/compare/1555545600/1555632000

Sale 19: Untrace.

https://backpack.tf/profiles/76561198154211785#!/compare/1556582400/1556668800

https://backpack.tf/profiles/76561198849147799#!/compare/1556409600/1556668800

Sale 20: Untrace.

https://backpack.tf/profiles/76561198849147799#!/compare/1556409600/1556928000

https://backpack.tf/profiles/76561198015534589#!/compare/1556582400/1556755200

Sales: 29/30/34/35/35/35/36/39, calling 39 an outlier.

Going With 29-36 (Thanks to headshot, shufflespy, mucy xd)

Thanks to scourge for the premium!

Minis:

Mini for sale 5:

https://backpack.tf/suggestion/5cca818dd3817248c317a162

Minis for sale 9:

https://backpack.tf/suggestion/5ce278506780727a455dbbb9

https://backpack.tf/suggestion/5ce2803d6780727d4a6af878

Mini for sale 12:

https://backpack.tf/suggestion/5ce285ced38172098e569042