Wavelength            % Reflectivity
248nm                      92.6
400nm                      92.0
532nm                      91.6
633nm                      90.7
800nm                      86.8
900nm                      89.0
1um                          94.0
3um                          98.0
10.6um                     98.7
20um                        99.0
100um                      99.4