Life expectancy is up, from a world average of less than 30 years in the mid-18th century to over 70 years today.
Hikwalaho ka nkambisiso lowu endliweke eka vutshunguri, ematikweni man'wana avhareji ya malembe lawa vanhu va hanyaka wona yi tlakukile yi suka ehansi ka malembe ya 50 eku sunguleni ka lembe-xidzana ra vu-20 yi ya tlula malembe ya 70 namuntlha!