It's only adults, and only citizens. By my calculation that's 4.72 million people and $158.8 billion. Switzerland's GDP appears to $632B [1]. So that's 25% of GDP. High, but hardly equal.
Also:
It is unconditional (i.e. it is given to everyone regardless of wage) but it is also taxable. So if you have other income you get it, but some of is recaptured in taxes.
It replaces every other form of welfare: unemployment, maternity leave, student stipend, basic retirement support, health care premium subsidies, and so on. Some of these programs provide more income, so in those cases it is a net savings.
Edit: N.B. that's at the official exchange rate, which is what you want to use if you are directly converting the Swiss stipend into dollars. If you want to use PPP then you need to adjust the stipend that way too. You should still get the same 25% GDP.
Also:
It is unconditional (i.e. it is given to everyone regardless of wage) but it is also taxable. So if you have other income you get it, but some of is recaptured in taxes.
It replaces every other form of welfare: unemployment, maternity leave, student stipend, basic retirement support, health care premium subsidies, and so on. Some of these programs provide more income, so in those cases it is a net savings.
[1] https://www.cia.gov/library/publications/the-world-factbook/...
Edit: N.B. that's at the official exchange rate, which is what you want to use if you are directly converting the Swiss stipend into dollars. If you want to use PPP then you need to adjust the stipend that way too. You should still get the same 25% GDP.