Please kindly explain the steps used so I can learn and understand. Thank you.

FF - the federal funds rate PCE INF = PCE inflation PCE CORE the core rate of PCE inflation GDP - real GDP GDP POT = potential GDP UR the unemployment rate CDP and PCE inflation table DATES 1974-04-01 1974-07-01 1974-10-01 1975-01-01 1975-04-01 1975-07-01 1975-10-01 1976-01-01 1976-04-01 1976-07-01 1976-10-01 1977-01-01 1977-04-01 1977-07-01 1977-10-01 1978-01-01 1978-04-01 1978-07-01 1978-10-01 1979-01-01 FF 1125 12.09 9.35 6.30 5.42 6.16 5.41 4.83 520 5.28 4.87 4.66 5.16 5.82 6.51 6.76 728 8.10 9.58 10.07 PCE INF PCE CORE 10.0 11.0 11.5 10.3 8.6 7.8 6.8 6.0 5.6 5.2 5.1 5.8 6.8 6.8 6.6 6.5 6.8 7.1 7.6 7.8 7.1 8.7 9.9 10.1 9.1 7.7 6.8 6.3 6.0 6.0 6.0 6.1 6.5 6.6 6.5 6.4 6.6 6.7 7.0 6.8 GDP 5425.4 5372.8 5351.4 5286.7 5327.4 5415.5 5488.5 5612.4 5654.8 5683.6 5726.2 5792.9 5906.6 6011.1 6011.7 6032.6 6267.2 6328.5 6413.3 6426.1 GDP POT 5404.6 5455.0 55052 55542 5601.5 56482 5694.4 5739.8 5784.9 5830.4 5876.9 5925.7 59767 6029.3 6083.6 6140.0 6199.7 6259.8 6319.5 63772 UR 5.2 5.6 6.6 8.3 8.9 8.5 8.3 7.7 7.6 7.7 7.8 7.5 11 6.9 67 6.3 6.0 6.0 5.9 5.9