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<p>values to them. </p>

<p><big>National accounts</big></p>
<p>Arriving at a figure for the total production of goods and services in a large region like a country entails a large amount of data-collection and calculation. Although some attempts were made to estimate national incomes as long ago as the 17th century,the systematic keeping of <a href="page.php?w=national_accounts">national accounts</a>, of which these figures are a part, only began in the 1930s, in the <a href="page.php?w=United_States">United States</a> and some <a href="page.php?w=European_countries">European countries</a>.</p><p>
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