Year Month Day AAO index 2004 FEB 1 -0.677 2004 FEB 2 -0.548 2004 FEB 3 -0.541 2004 FEB 4 -0.658 2004 FEB 5 -1.029 2004 FEB 6 -1.093 2004 FEB 7 -0.818 2004 FEB 8 -0.329 2004 FEB 9 -0.040 2004 FEB 10 0.138 2004 FEB 11 -0.165 2004 FEB 12 -0.742 2004 FEB 13 -1.460 2004 FEB 14 -1.520 2004 FEB 15 -1.292 2004 FEB 16 -1.070 2004 FEB 17 -1.068 2004 FEB 18 -1.546 2004 FEB 19 -1.648 2004 FEB 20 -1.889 2004 FEB 21 -2.301 2004 FEB 22 -2.146 2004 FEB 23 -2.085 2004 FEB 24 -2.075 2004 FEB 25 -1.724 2004 FEB 26 -1.477 2004 FEB 27 -1.384 2004 FEB 28 -1.210 2004 FEB 29 -0.720 2004 MAR 1 -0.718 2004 MAR 2 -0.578 2004 MAR 3 0.726 2004 MAR 4 1.550 2004 MAR 5 1.709 2004 MAR 6 1.501 2004 MAR 7 1.665 2004 MAR 8 2.066 2004 MAR 9 2.546 2004 MAR 10 2.744 2004 MAR 11 2.742 2004 MAR 12 2.747 2004 MAR 13 2.173 2004 MAR 14 1.493 2004 MAR 15 1.314 2004 MAR 16 1.046 2004 MAR 17 0.379 2004 MAR 18 0.119 2004 MAR 19 -0.597 2004 MAR 20 -0.938 2004 MAR 21 -1.105 2004 MAR 22 -1.471 2004 MAR 23 -1.656 2004 MAR 24 -1.573 2004 MAR 25 -1.827 2004 MAR 26 -2.217 2004 MAR 27 -2.472 2004 MAR 28 -1.474 2004 MAR 29 0.202 2004 MAR 30 1.160 2004 MAR 31 1.568 2004 APR 1 1.388 2004 APR 2 0.636 2004 APR 3 -0.037 2004 APR 4 -0.156 2004 APR 5 0.352 2004 APR 6 0.950 2004 APR 7 1.164 2004 APR 8 0.804 2004 APR 9 -0.393 2004 APR 10 -1.280 2004 APR 11 -0.709 2004 APR 12 0.148 2004 APR 13 0.705 2004 APR 14 0.903 2004 APR 15 0.874 2004 APR 16 0.591 2004 APR 17 -0.250 2004 APR 18 -1.139 2004 APR 19 -1.745 2004 APR 20 -1.888 2004 APR 21 -1.799 2004 APR 22 -0.859 2004 APR 23 0.684 2004 APR 24 1.721 2004 APR 25 1.278 2004 APR 26 0.675 2004 APR 27 0.678 2004 APR 28 0.727 2004 APR 29 0.225 2004 APR 30 0.047 2004 MAY 1 0.349 2004 MAY 2 1.179 2004 MAY 3 1.436 2004 MAY 4 1.404 2004 MAY 5 0.908 2004 MAY 6 0.616 2004 MAY 7 0.600 2004 MAY 8 0.730 2004 MAY 9 0.718 2004 MAY 10 0.737 2004 MAY 11 0.215 2004 MAY 12 0.082 2004 MAY 13 -0.420 2004 MAY 14 -0.913 2004 MAY 15 -1.502 2004 MAY 16 -1.544 2004 MAY 17 -0.995 2004 MAY 18 -0.643 2004 MAY 19 0.251 2004 MAY 20 0.239 2004 MAY 21 0.324 2004 MAY 22 1.104 2004 MAY 23 1.262 2004 MAY 24 1.070 2004 MAY 25 0.873 2004 MAY 26 0.503 2004 MAY 27 0.130 2004 MAY 28 0.455 2004 MAY 29 1.255 2004 MAY 30 1.651 2004 MAY 31 1.586