[deilline]

The people that replied are likely software engineers and likely high earners in a very employee favored market.

It's true that it varies by employer.

Here are average numbers from the Bureau of Labor Statistics: https://www.bls.gov/news.release/ebs.t05.htm

[anticensor]

The average is just one week a year (two weeks a year past 15 years of work), well below world average.