What are the chances of bone cancer nowadays?

Cancer affecting: Bones creates great confusion. The chance of "getting it nowadays" probably has not changed a whit, but primary bony tumors are rare as hen's teeth in the first place. Cancers that travel to, infest and destroy bones are quite common: the big 3 are lung, breast and prostate. Treatment is highly dependent on the primiary or secondary source issue.

More info needed: Please let us know what you mean by bone cancer. This is not a specific "entity". Primary cancers of the bone are rare (osteosarcomas, etc.). Cancers that arise elsewhere in the body and travel (metastasize) to bones are much more common. There are also bone marrow cancers, such as multiple myeloma and leukemia. These are more common than bone cancers.