Average life expectancy rose from 48.5 years (men) and 52.4 years (women) in 1901 to 79 years (men) and 83 years (women) in 2012-2014.
The infant mortality rate
The infant mortality rate fell from around 138 per 1,000 lives birth in 1902 to around 4 per 1,000 in 2014.
The death rate
It is defined as the number of deaths per 1,000 of the population each year. The death rate declined from 16 per 1,000 in 1902 to 8.7 per 1,000 in 2014.
What has improved hygiene and sanitation contributed to in terms of health?
It has helped to eradicate many life-threatening diseases.