Your general position that Americans often don't get a lot of vacation time by the norms of developed countries isn't wrong, but your choice of data is.
That table is 23 years out of date, and it was only for employees at "small private establishments", which generally means <100 employees in BLS terminology. They generally provide less vacation time than the overall average of employers.
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As of 2017, the average in the US is around 15 days after 5 years, 17 days after 10 years, and 20 days after 20 years.
Also, to note the obvious: The norms for your average HN reader in terms of benefits are likely to be different (better) from the average person in society. I would consider 15 days to be an "only" in the part of the job market I am in.
That table is 23 years out of date, and it was only for employees at "small private establishments", which generally means <100 employees in BLS terminology. They generally provide less vacation time than the overall average of employers.
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As of 2017, the average in the US is around 15 days after 5 years, 17 days after 10 years, and 20 days after 20 years.
https://www.bls.gov/opub/ted/2018/private-industry-workers-r...
Approximately 90% of full time workers have paid holiday and vacation in some form.
https://www.bls.gov/ncs/ebs/benefits/2017/ownership/private/...
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Also, to note the obvious: The norms for your average HN reader in terms of benefits are likely to be different (better) from the average person in society. I would consider 15 days to be an "only" in the part of the job market I am in.