Fig. 1From: Tick-borne encephalitis (TBE) cases are not random: explaining trend, low- and high-frequency oscillations based on the Austrian TBE time seriesDemographics of the Austrian human population. Left axis: population in million (black line), right axis: birth rate, mortality rate and net migration rate in 1,000 per year (red lines). Noteworthy is the net migration, which is exclusively responsible for the population growth. Period 1979–2018Back to article page