[Someone]

Wine isn’t a spirit (nor is beer). That number is about distilled alcohol. https://en.wikipedia.org/wiki/Liquor:

“Liquor or spirit (also distilled alcohol) is an alcoholic drink produced by distillation of grains, fruits, or vegetables that have already gone through alcoholic fermentation.

[…]

Liquor generally has an alcohol concentration higher than 30%”

⇒ For a 10% alcohol wine, multiply that by a factor of (at least) 3. That makes it a bottle of wine a day.

Also, it was the average adult. Women likely consumed less alcohol. If so, the average adult male must have consumed more.

[soperj]

They already did that when they said 36 liters, which is 100 bottles of wine.