Which tire has the highest Treadwear (UTQG) in size 215/40R18

It's time to buy new tires for my car, but I want to buy a tire that lasts longer than the original brand, OEM. Which tire has the highest Treadwear in this size 215/40R18?

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540 - Treadwear

 Continental ExtremeContact DWS - UTQG: 540AA - Tire Rating: 0

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480 - Treadwear

 Dunlop SP Sport LM703 - UTQG: 480AA - Tire Rating: 4.25

 Kumho Solus KH25 - UTQG: 480AA - Tire Rating: 4.26

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420 - Treadwear

 Federal Formoza FD2 - UTQG: 420AA - Tire Rating: 4.1

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400 - Treadwear

 Achilles ATR Sport - UTQG: 400AAA - Tire Rating: 4.57

 Pirelli Pzero Nero - UTQG: 400AAA - Tire Rating: 4.31

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340 - Treadwear

 Continental ContiExtremeContact DW - UTQG: 340AAA - Tire Rating: 4.58

 Sailun Atrezzo ZS+ - UTQG: 340AA - Tire Rating: 3.92

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320 - Treadwear

 Kumho Ecsta SPT KU31 - UTQG: 320AAA - Tire Rating: 4.17

 Nankang AS-1 - UTQG: 320AA - Tire Rating: 4.46

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300 - Treadwear

 Toyo Proxes 4 - UTQG: 300AAA - Tire Rating: 4.26

 Hankook Ventus Prime 2 K115 - UTQG: 300AA - Tire Rating: 2.84

 Yokohama S.DRIVE - UTQG: 300AAA - Tire Rating: 4.33

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280 - Treadwear

 Hankook Ventus V12 evo K110 - UTQG: 280AAA - Tire Rating: 4.02

 Dunlop SP Sport 01 - UTQG: 280AA - Tire Rating: 4.24

 Toyo Proxes T1R - UTQG: 280AAA - Tire Rating: 4.65

 Continental ContiSportContact 2 - UTQG: 280AAA - Tire Rating: 4.46

 Bridgestone Potenza RE050A - UTQG: 280AAA - Tire Rating: 3.84

 Kumho Ecsta LE Sport KU39 - UTQG: 280AAA - Tire Rating: 4.38

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260 - Treadwear

 Federal SS 595 - UTQG: 260AAA - Tire Rating: 4.46

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240 - Treadwear

 Toyo Proxes T1 Sport - UTQG: 240AAA - Tire Rating: 4.5

 Toyo Proxes Sport - UTQG: 240AAA - Tire Rating: 0

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200 - Treadwear

 Dunlop SP Sport FM901 - UTQG: 200AA - Tire Rating: 4.57

 Nankang NS-2 - UTQG: 200AA - Tire Rating: 4.5

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