There has been a long-term decline in smoking rates over the past few decades, mainly due to health concerns. Now only 21% of the population smokes. Government measures designed to reduce smoking rates have added to the negative press surrounding health-related smoking risks and contributed to declining smoking rates. Industry revenue is expected to fall 3.3% per annum over the five years through 2012-13 to reach £8.8 billion. This figure includes excise tax, which accounts for approximately 74% of industry revenue. Industry revenue is expected to decline 5.2% in 2012-13. IBISWorld expects the industry will continue to decline over the next five years, with the number of companies operating in the industry expected to fall to just 10 in 2017-18. Cigarette consumption is expected to continue its downward trend, while regulation and taxes on tobacco increase. Employment is expected to decline an annualised 3.9%. Consequently industry revenue is expected to decline over the next five years to 2017-18. For these reasons, industry research firm IBISWorld has updated its report on the Tobacco Product Manufacturing industry.