lis = ['67.691', '67.981', '67.391', '68.501', '68.367', '68.373', '67.971', '68.286', '68.045', '68.693', '68.629', '68.493', '67.883', '68.365', '68.037', '67.651', '67.511', '68.055', '67.514', '68.039', '67.309', '67.453', '66.086', '67.454', '67.474', '67.975', '67.563', '67.4', '67.167', '66.733', '66.995', '67.397', '66.806', '66.539', '66.841', '66.623', '66.914', '66.33', '66.628', '66.321', '66.222', '66.307', '66.444', '66.147', '66.086', '66.304', '66.452', '66.48', '66.243', '65.925', '66.042']
print(max(lis))

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