$DGDP= YearlyFactor*(0.5+0.5*WeeklyFactor)$
where
$$ YearlyFactor = Nf * \sqrt[4]{((Population) * (GDPc) * (Visitors) * (HDI) * (Internet Access Rate) * (Wikipedia Search Amount) )} $$
where,
$Nf = 0.03400328121$
$Population =$ the population of a nation measured in the latest year
(Source: https://data.worldbank.org/indicator/SP.POP.TOTL)
$GDPc =$ GDP per capita of the nation in the latest year
(Source: https://data.worldbank.org/indicator/NY.GDP.PCAP.CD)
$Visitors =$ International visitors of the nation in the latest year
(Source: https://data.worldbank.org/indicator/ST.INT.ARVL)
$HDI =$ Human development index of the nation in the latest year
(Source: http://hdr.undp.org/en/data)
$InternetAccessRate =$ Internet access rate of the nation in the latest year
(Source: https://data.worldbank.org/indicator/IT.NET.USER.ZS)
$WikipediaSearchAmount=$ Total number of searches on the nation's pages in Wikipedia during the latest year