The highest rates of growth—increases above 1.8% per year—were seen briefly during the 1950s, for a longer period during the 1960s and 1970s; the growth rate peaked at 2.2% in 1963, and declined to 1.1% by 2009.since their peak at 173 million in the late 1990s,Annual births have reduced to 140 million.which are expected to remain constant while per year deaths number 57 million.which are expected to increase to 80 million per year by 2040.with the population expected to reach between 7.5 and 10.5 billion in the year 2050, Current projections show a continued increase of population (but a steady decline in the population growth rate)
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