That's mesothelioma deaths (c. 2500 p.a.), and asbestosis deaths (c. 500 p.a.), that your graph is showing.
You missed out lung cancer deaths:
http://www.hse.gov.uk/statistics/causdis/asbestosis/asbestos-related-disease.pdf
(my italics)
Asbestos-related lung cancer
Asbestos is one of the most common causes of lung cancer after tobacco smoking. Lung cancer usually has no specific clinical signs associated with particular causes and so it is very difficult to be sure about the cause of individual cases. However, the overall proportion of annual deaths that are attributable to past asbestos exposures can be estimated from epidemiological information. Lung cancer is still typically fatal within a few years of diagnosis and so, as with the mesothelioma, the number of annual deaths is similar to the annual incidence of new cases.
Research suggests there are currently about as many lung cancer deaths attributed to past asbestos exposure each year in Great Britain as there are mesothelioma deaths. There is considerable uncertainty associated with this estimate. This implies there are currently around 2,500 asbestos-related lung cancer deaths each year. Estimation of attributable deaths is complicated by the fact that asbestos and smoking act together to increase the risk of lung cancer. This means that many cases of lung cancer will be caused by both smoking and asbestos rather than by one or other of these exposures.
2500 + 500 + 2500 = ?
The hazards of "construction dust":
http://www.hse.gov.uk/construction/faq-dust.htm
"Anyone who breathes in these dusts should know the damage they can do to the lungs and airways. The main dust related diseases affecting construction workers are:
While some of lung disease like advanced silicosis can come on quite quickly, most take a long time. Often this is over years. They happen because during this time regularly breathing even small amounts of dust adds up and damages the lungs and airways. Unfortunately, by the time you notice the damage is often done and it is more difficult to treat."
"Important statistic
Recent HSE research has estimated that silica may be responsible for the deaths of over 500 people each year who have worked in construction. HSE also estimates that around 4,000 people die every year from COPD linked to work. Construction workers are one of the at-risk groups within this because of the dust that they breathe."
Is dust extraction / collection fitted to your power tools just to save some cleaning up, or for some other reason, I wonder?......
Or the sticker advising RPE is there just because it adds a bit of colour to your gear?.....