! cet181.scl ! 6.625 tET. The 16/3 is the so-called Kidjel Ratio promoted by Maurice Kidjel in 1958 16 ! 181.12781 362.25562 543.38344 724.51125 905.63906 1086.76687 1267.89469 1449.02250 1630.15031 1811.27812 1992.40594 2173.53375 2354.66156 2535.78937 2716.91719 16/3