\label{fig:SUSYbenchmarks} A compilation of prospective experimental errors in measurements of the principal Higgs decay branching ratios at the LHC, HL-LHC, ILC and TLEP, compared with current estimates of the uncertainties in the Standard Model predictions~\cite{1307.1347} and the deviations from the Standard Model calculated in various supersymmetric models described in the text, and in more detail in~Ref.~\cite{Isidori_Marrouche_et_al__2012}.