centre_year_BC_AD,duration_yr,name
1680,80,Maunder
1470,160,Spörer
1305,70,Wolf
1040,60,
685,70,
-360,60,
-765,90,
-1390,40,
-2860,60,
-3335,70,
-3500,40,
-3625,50,
-3940,60,
-4225,30,
-4325,50,
-5260,140,
-5460,60,
-5620,40,
-5710,20,
-5985,30,
-6215,30,
-6400,80,
-7035,50,
-7305,30,
-7515,150,
-8215,110,
-9165,150,