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  2. Baby boomers - Wikipedia

    en.wikipedia.org/wiki/Baby_boomers

    The term baby boom refers to a noticeable increase in the birth rate. The post-World War II population increase was described as a "boom" by various newspaper reporters, including Sylvia F. Porter in a column in the May 4, 1951, edition of the New York Post, based on the increase of 2,357,000 in the population of the U.S. from 1940 to 1950.

  3. 50–40–90 club - Wikipedia

    en.wikipedia.org/wiki/50–40–90_club

    Thus, a true 50–40–90 season requires a player to achieve or exceed 50.0 percent field goal efficiency, 40.0 percent three-point field goal efficiency and 90.0 percent free-throw shooting efficiency. The NBA requires a player to make at least 300 field goals, 82 three-pointers, and 125 free throws to be a leader in the respective category.

  4. Projections of population growth - Wikipedia

    en.wikipedia.org/wiki/Projections_of_population...

    In the more developed regions, the projected increase is from 76 years during the period 2000–2005 to 84 years during the period 2045–2050 and 90 in 2095–2100. Among the less developed countries, where life expectancy during the period 2000–2005 was just under 66 years, it is expected to be 76 years in 2045–2050 and 81 years by 2100.

  5. Periodical cicadas - Wikipedia

    en.wikipedia.org/wiki/Periodical_cicadas

    The term periodical cicada is commonly used to refer to any of the seven species of the genus Magicicada of eastern North America, the 13- and 17-year cicadas.They are called periodical because nearly all individuals in a local population are developmentally synchronized and emerge in the same year.

  6. Distribution of wealth - Wikipedia

    en.wikipedia.org/wiki/Distribution_of_wealth

    For any particular household, its point on the curve represents how their wealth compares (as a proportion) to the average wealth of the richest percentile. For any nation, the average wealth of the richest 1/100 of households is the topmost point on the curve (people, 1%; wealth, 100%) or (p=1, w=100) or (1, 100).

  7. List of epidemics and pandemics - Wikipedia

    en.wikipedia.org/wiki/List_of_epidemics_and...

    Years Location 1 Spanish flu: Influenza A/H1N1: 17–100 million 1–5.4% of global population [5] 1918–1920 Worldwide 2 Plague of Justinian: Bubonic plague 15–100 million 25–60% of European population [6] 541–549 North Africa, Europe, and Western Asia 3 Black Death: Bubonic plague: 25–50 million 30–60% of European population [7 ...

  8. Pregnancy over age 50 - Wikipedia

    en.wikipedia.org/wiki/Pregnancy_over_age_50

    Menopause typically occurs between 44 and 58 years of age. [8] DNA testing is rarely carried out to confirm claims of maternity at advanced ages, but in one large study, among 12,549 African and Middle Eastern immigrant mothers, confirmed by DNA testing, only two mothers were found to be older than fifty; the oldest mother being 52.1 years at conception (and the youngest mother 10.7 years old).

  9. Suicide in the United States - Wikipedia

    en.wikipedia.org/wiki/Suicide_in_the_United_States

    The largest increases were among women aged 60 to 64, with rates rising 60 percent, then men in their fifties, with rates rising nearly 50 percent. [21] In 2008, it was observed that U.S. suicide rates, particularly among middle-aged white women, had increased, although the causes were unclear. [ 22 ]