C() 1951N`2000N() 5.7 3.8 6.1 5.6 5.9 2.8 6.2 6 5.3 5.1 4.9 4.7 5.6 5.2 4.7 3.5 4.2 7.4 4.3 3.5 4.9 5.6 2.8 3.3 3.5 4.2 5.5 5.3 7 4.6 4.6 5.8 3.2 4.5 4.3 5.1 5.1 4.7 5.5 6.6 6.3 6.2 5.7 5.6 4 6 6 5.9 5.1 5.2