1968 28 6.1449e+012 5.3764e+012 4.6698e+012 4.0309e+012 3.4607e+012 2.3185e+012 1.5200e+012 6.2430e+011 2.4642e+011 9.4927e+010 3.6018e+010 1.3536e+010 5.0552e+009 1.8799e+009 2.5759e+008 3.4951e+007 4.6985e+006 6.2581e+005 8.2606e+004