I don't understand the "get duplicate chutes" comment. More info, please?

"Songoku" wrote:

Hi,

I need to create a floating bar graph to show when chutes open and their
durations so for example:

Chute Open Time Duration
01B 05:00 2:20
01B 07:20 2:20
01B 08:00 0:40

problem I am having is that when i go to create the floating bar graph
although the general information is correct i.e time and duration i get
duplicate chutes. I have tried converting these to numbers but have had no
joy..........

any help please.........would be appreciated!!!!