massmap 0.1.5

Static hash table that scales via disk-backed expansion to trim memory usage while ensuring each lookup needs exactly one I/O.
Documentation 
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{
    "1978": 385,
    "1979": 423,
    "1980": 468,
    "1981": 497,
    "1982": 533,
    "1983": 588,
    "1984": 702,
    "1985": 866,
    "1986": 973,
    "1987": 1123,
    "1988": 1378,
    "1989": 1536,
    "1990": 1663,
    "1991": 1912,
    "1992": 2334,
    "1993": 3027,
    "1994": 4081,
    "1995": 5091,
    "1996": 5898,
    "1997": 6481,
    "1998": 6860,
    "1999": 7229,
    "2000": 7942,
    "2001": 8717,
    "2002": 9506,
    "2003": 10666,
    "2004": 12487,
    "2005": 14368,
    "2006": 16738,
    "2007": 20494,
    "2008": 24100,
    "2009": 26180,
    "2010": 30808,
    "2011": 36277,
    "2012": 39771,
    "2013": 43497,
    "2014": 46912,
    "2015": 49922,
    "2016": 53783,
    "2017": 59592,
    "2018": 65534,
    "2019": 70078,
    "2020": 71828,
    "2021": 80976,
    "2022": 85698,
    "2023": 91746,
    "2024": 95749
}