diagram shows how that investment fluctuates much more than consumption. Both series are highly correlated with GDP.

Why is investments fluctuates more than consumption when gdp increases or decreases?please explain details and please do try your best, thank you!

FRED ~ - Real Consumption Expenditures in the United Kingdom@ - Real Investment Expenditures in the United Kingdom@ 30 20 10 Percent Change from Year Ago 0 -10 -20 -30 1960 1970 1980 1990 2000 2010 fred.stlouisfed.org myf.red/g/cykp