How much methanol is in windshield washer fluid?

I have seen many people list a wide variety of numbers on what the percentage of methanol is in the blue juice (washer fluid). I searched just about every company out there, and found out that regardless of the brand, the methanol percentage was consistent for whatever the temperature range was

What's in Windshield Washer Fluid That Keeps It From Freezing?

WATER METH VS (LOW-$) WINDSHIELD WASHER FLUID-WHO WINS? BEST WATER/METH VIDEO EVER! IATS, AF & HP!

Member's Value Windshield Washer Fluid 3.79L

Meth % in commonly available washer fluids - Miata Turbo Forum - Boost cars, acquire cats.

DOKIKO 100 Pcs Car Windshield Washer Fluid concentrate Tablets,105

4 Ways to Make Windshield Washer Fluid - wikiHow

Powerful Windshield Methanol De-Icer Concentrate – Valtec Industries

Autozone windshield washer fluid – Best Screenwash

Is Windshield Washer Fluid Flammable? - FireFighterLine

Windshield Wiper Fluid Poisoning in Dogs - Symptoms, Causes

Windshield Washer -45 degrees Fahrenheit is a blend of 72% methanol and water with blue dye. This Windshield Washer Concentrate can be diluted to meet

Windshield Washer Fluid 72% Concentrate -45F

WINDSHIELD WASHER FLUID - RH CROWN