0.77 250. 0.77 500. 0.72 750. 0.68 1000. 0.65 1100. 0.61 1200. 0.59 1300. 0.56 1400. 0.54 1500. 0.50 1600. 0.46 1700. 0.43 1800. 0.42 1850. 0.45 1900. 0.39 1950. 0.39 2000. 0.42 2050. 0.38 2100. 0.39 2115.