Figure 6.10 Influenza mortality in France, 1887–1999. (A) Radar chart showing the proportion of deaths reported in each month over the period (dark shading). The average monthly proportion is marked by light shading. (B) Time series of annual deaths from influenza reported in French records. For 1901–5, the national series of deaths by cause was recorded for towns whose populations exceeded 5,000 rather than 30,000.