data={{0.01,58},{0.02,0},{0.04,24},{0.11,0},{0.12,0},{0.18,8},{0.18,41},{0.19,78},{0.19,22},{0.2,95},{0.2,100},{0.26,36},{0.27,50},{0.34,0},{0.35,98},{0.36,0},{0.47,80},{0.47,75}};

Export["/Users/troyday/Desktop/Transfer/BB Chapter11/data.txt",data,"TSV"]