5
 DPPC coarse-grained lipid
  1          0.000000        0.000000       33.750000
  2          0.000000        0.000000       26.250000
  3          0.000000        0.000000       18.750000
  3          0.000000        0.000000       11.250000
  3          0.000000        0.000000        3.750000
