1997.042 -0.8 1997.125 -0.5 1997.208 0.0 1997.292 0.2 1997.375 1.1 1997.458 1.7 1997.542 2.5 1997.625 2.9 1997.708 3.0 1997.792 3.3 1997.875 3.6 1997.958 3.5 1998.042 3.2 1998.125 2.6 1998.208 2.1 1998.292 1.7 1998.375 1.3 1998.458 -0.3 1998.542 -0.3 1998.625 -0.3 1998.708 -0.7 1998.792 -1.0 1998.875 -1.0 1998.958 -1.4