9    * total number of series
0 Makkarat                                                    *
0 Muut                                                        *
0 Makkarat_prev_year                                          *
x Muut_prev_year                                              *
0 Monday_Dummy                                                *
0 Tuesday_Dummy                                               *
0 Wednesday_Dummy                                             *
0 Thursday_Dummy                                              *
0 Friday_Dummy                                                *