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Fig. 6

image

Decadally averaged sunspot numbers for the period 1600–1900 AD. The thick gray curve represents this work (uncertainties are not shown). Other curves correspond to sunspot number series: L14 (Lockwood et al. 2014), H98 (Hoyt & Schatten 1998), SS15 (Svalgaard & Schatten 2015), and the C14 international sunspot number (v.2) scaled with a factor 0.6 (Clette et al. 2014).

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