Breaking down the historical setting of Jin Yong's main novels, we find the distribution as follows:
Sung Dynasty (three stories): DGSD, LOCH, ROCH
Yuan Dynasty (one story): HSDS
Ming Dynasty (two stories): SPW and SSWRB
Qing Dynasty (three stories): DOMD, B&S: G&R, FFoSM
Sung and Qing appeared to be Jin Yong's favorite stomping grounds. Yuan, being relatively short, accommodated only one story. Surprised that Ming didn't get more play.