55.123


                                    39.623


                                    24.724


                                     7.280



                                     1971


                                    46.026


                                    63.744


                                    44.902


                                    28.223


                                     8.251



                                     1972


                                    34.423


                                    50.812


                                    33.559


                                    22.887


                                     7.198



                                     1973


                                    13.773


                                    20.125


                                    16.152


                                     8.773


                                     2.531



                                     1974


                                    14.453


                                    20.379


                                    14.244


                                     8.694


                                     2.354



                                     1975


                                    15.782


                                    21.561