## 4 Discussion
In order to investigate the relationship between these two ratios, the [PERSON]'s Rho correlation coefficient was calculated and the results are presented in Table 9. A positive correlation between the two ratios was detected, that was significant at the 0.00 level (2-tailed). This means that the null hypothesis, that there is no monotonic relationship between the two variables, is rejected. It is safe to assume that the national domains usage per GDP ratio, which was measured through discovering the available national ccTLD domains in Common Crawl Index, has a significant correlation with the ratio of.eu domain usage per GDP, which was derived by the country detection algorithm. \begin{table}
\begin{tabular}{c c c} \hline \hline
**Country** & _eu/gdp_ & _nat/gdp_ \\ \hline Austria & 0.79 & 0.88 \\ Belgium & 1.10 & 0.86 \\ Bulgaria & 6.08 & 1.39 \\ Croatia & 2.07 & 1.81 \\ Cyprus & 1.48 & 0.52 \\ Czechia & 3.56 & 3.24 \\ Denmark & 0.59 & 0.96 \\ Estonia & 7.74 & 3.65 \\ Finland & 0.30 & 1.08 \\ France & 0.52 & 0.57 \\ Germany & 0.96 & 0.91 \\ Greece & 1.53 & 2.05 \\ Hungary & 1.79 & 2.64 \\ Ireland & 0.23 & 0.30 \\ Italy & 0.81 & 0.78 \\ Latvia & 1.79 & 2.34 \\ Lithuania & 3.79 & 2.20 \\ Luxembourg & 0.28 & 0.39 \\ Malta & 0.86 & 0.54 \\ Netherlands & 1.74 & 1.47 \\ Poland & 2.68 & 2.24 \\ Portugal & 0.57 & 1.07 \\ Romania & 0.79 & 1.80 \\ Slovakia & 3.51 & 2.56 \\ Slovenia & 2.80 & 2.00 \\ Spain & 0.48 & 0.63 \\ Sweden & 0.33 & 0.89 \\ \hline \hline \end{tabular}
\end{table} 
Table 8: Ratios referring to each country’s relevant footprint in the domain usage landscape. Figure 10: _nat/gdp_ by EU member state. Figure 9: _eu/gdp_ ratio by EU member State. This correlation is a strong indicator of the quality of the country detection algorithm, because it indicates that each country's presence in the.eu domain is closely related but not identical with each country's overall World Wide Web presence as measured by the usage of its national ccTLD. Being closely related indicates a general trend in some countries to have a more active presence on the Internet than others. Not being overly correlated indicates that there are other significant factors at play when the choice to adopt the.eu TLD is made, apart from this general trend. As detailed in the introduction, one of the main roles for creating the.eu TLD was to contribute to the Digital Market by providing EU residents and businesses a common Web domain that inspires confidence [7], stability, and security. In order to investigate further whether that purpose is being fulfilled, trade statistics from the EU [39] were used to obtain the ratio of EU external trades (Extra-EU) by GDP for each country. Table 10 presents the collected numerical data for external trade, the data as a percentage of total EU external trade, and the ration of that external trade percentage divided by each country's GDP as a percent of total EU GDP (variable _ex/gdp_). The ratio calculated by dividing the external trade percentage by the GDP of a country provides us a metric of how competitive and outward-looking that country's economy is in terms of exports to countries outside of the EU, while at the same time diminishing the influence of the size of that country's economy as determined by GDP.