Weeks since decent F2 spots on 10m here

Although EA8BVP (2986km) seems to spot my 500mW 10m WSPR signal on most days, it is some weeks now since I have been spotted on the band at greater distance. I know my antenna is not brilliant on 10m, but I was expecting more 10m spots from S.Africa and S.Ameríca. I fear many have migrated to lower frequency bands now, which is a pity, or possibly other modes. At the last time I looked there were only 32 active 10m WSPR stations worldwide. A few months ago this was over 100.