The maternal mortality data from Save the Children State of the World's Mothers report.  The data represent the lifetime risk of maternal death from pregnancy-related causes.  They are presented on a logarithmic scale, with each color representing a two-fold difference in maternal death rate.

  1 in 7 to 1 in 8
  1 in 11 to 1 in 16
  1 in 18 to 1 in 32
  1 in 33 to 1 in 55
  1 in 70 to 1 in 120
  1 in 130 to 1 in 240
  1 in 270 to 1 in 500
  1 in 530 to 1 in 1000
  1 in 1100 to 1 in 1400
  1 in 2100 to 1 in 3700
  1 in 4400 to 1 in 7800
  1 in 8200 to 1 in 14200
  1 in 16400 to 1 in 29000
  1 in 47600
BlankMap-World6.svg
BlankMap-World6.svg: Canuckguy (talk) and many others
derivative work: Mike Serfas (talk)