I ran across this table which might be of interest:
Sweetener Glycemic Index
Xylitol 7.0 ,
Crystalline Fructose 23.0,
Organic Agave Nectar 10.0 ,
High Fructose Corn Syrup 62.3 ,
Sucrose 65.0 ,
Honey 73.0 ,
Glucose 97.0 ,
Maltodextrin 105.0 ,
Maltose 105.0 ,
This came from a site called smartbomb (don’t ask me what Agave Nectar is).