maple format temp, surface tension data [degrees C, N/m]

[[-8,77.0],[-5,76.4],[0,75.6],[5,74.9],[10,74.22],[15,73.49],[18,73.05],[20,72.75],[25,71.97],[30,71.18],[40,69.56],[50,67.91],[60,66.18],[70,64.4],[80,62.6],[100,58.9]]