We can't. It's not just a number of beds. It's also how long people stay there (which really depends on healthcare system). E.g. in countries with poor healthca

We can't. It's not just a number of beds. It's also how long people stay there (which really depends on healthcare system). E.g. in countries with poor healthcare level people tend to stay in bed longer than in countries with good healthcare. Plus the average "normal" level of ICU occupation might be different (e.g. one country has 70% threshold, while another one 40%).