Line chart in SP2010

Hi SP2010 guru

I am trying to create a line chart in Sharepoint 2010, the reason column names have Month Name because it dose not change and is for annual charting, so the GroupName i.e. financial year changes (depends on selection)

I am having table

GroupName  |  JUL  |  AUG  |  SEP  |  OCT  | and so on (months)

2012/13          25.2    35.0    15.8    11.8    and so on

2011/12          22.6    25.5    34.3     15.2  and so on

how it would be possible to create a line chart like

40  |

30  |

20  |

10  |

0    |-----------------------------------------------------------------------------------------|

     JUL     AUG     SEP    OCT    NOV    DEC   JAN   FEB    MAR   APR   MAY   JUN

                           Legends [===== 2012/13     **** 2011/12]

any ideas

thank you hips in advance

Sanjeev