Median income is the amount which divides the income distribution into two equal groups, half having income above that amount, and half having income below that amount. Mean income (average) is the amount obtained by dividing the total aggregate income of a group by the number of units in that group. The means and medians for households and families are based on all households and families. Means and medians for people are based on people 15 years old and over with income.
Any ingestion of chocolate is bad for a dog; whether it eats a toxic dose, your dog could suffer some serious adverse reactions. Since even a small dose of theobromine is potentially toxic and possibly lethal for dogs, it is recommended that you contact your veterinarian immediately for advice.
The caffeine in chocolate can also have toxic effects. Pure baking chocolate is most toxic, while milk chocolate requires a higher quantity to cause harm. A 20-pound dog can be poisoned after consuming about 2 ounces of baking chocolate, but it would take nearly 20 ounces of milk chocolate to cause harm.