Explanation of Lexis Map for
Raw Death Counts

The charts below display the age groupings for deaths by calendar year. Each vertical column represents one year of data. Age is displayed along the y-axis; So, a square box at age 0 indicates that the original raw deaths counts are given in 1x1 format (i.e., single year of age and single calendar year). A vertical rectangle spanning from age 5 to 10 shows that deaths are given in 5x1 format. Triangles indicate that the original death counts are given by age and birth cohort. Finally, long vertical rectangles with a light gray background represent open age intervals (e.g., ages 100+).