"tst", "tc", "mac", "y"
  19.5, 43.1, 29.1, 11.9
  24.7, 49.8, 28.2, 22.8
  30.7, 51.9, 37.0, 18.7
  29.8, 54.3, 31.1, 20.1
  19.1, 42.2, 30.9, 12.9
  25.6, 53.9, 23.7, 21.7
  31.4, 58.5, 27.6, 27.1
  27.9, 52.1, 30.6, 25.4
  22.1, 49.9, 23.2, 21.3
  25.5, 53.5, 24.8, 19.3
  31.1, 56.6, 30.0, 25.4
  30.4, 56.7, 28.3, 27.2
  18.7, 46.5, 23.0, 11.7
  19.7, 44.2, 28.6, 17.8
  14.6, 42.7, 21.3, 12.8
  29.5, 54.4, 30.1, 23.9
  27.7, 55.3, 25.7, 22.6
  30.2, 58.6, 24.6, 25.4
  22.7, 48.2, 27.1, 14.8
  25.2, 51.0, 27.5, 21.1