Put median value next to the median bar. Pls help, thanks a lot.

I wann to put median value next to the median bar! But don't how to revise the geom_text function. Pls hep. Thanks in advance.

My code is as follows:

 #2. Data Calculation
ISOFF_normalization=ISOFF$Site_Value
ISOFF_pA<-cbind(ISOFF,ISOFF_normalization)
colnames(ISOFF_pA)[22]="Site_Value_Nor"
  #3 Calculate median value
ISOFF_pA$SPLIT<-as.factor(ISOFF_pA$SPLIT)
median<-ISOFF_pA %>% data.frame(ISOFF_pA$SPLIT,ISOFF_pA$Site_Value_Nor)
median.sum <- aggregate(Site_Value_Nor~SPLIT,median,FUN = "median")
median.sum$Site_Value_Nor<-(format(median.sum$Site_Value_Nor,digits = 3,scientific = TRUE))
median.sum$Site_Value_Nor1<-as.numeric(format(median.sum$Site_Value_Nor,digits = 3,scientific = TRUE))


#Isoff
p<-ggplot(ISOFF_pA,aes(x=as.factor(SPLIT),y=Site_Value_Nor)) + #Chart X and Y, Box color type
  geom_boxplot(position=position_dodge(width=0.8)) + 
  theme_bw() + 
  scale_y_log10(breaks=10^(-1:3)) + coord_cartesian(ylim=c(0.1,1000)) + #scale range set up
  theme(axis.text.y=element_text(family="Times",face="bold",colour="#000000",size=14)) + #y axis items font set up
  theme(axis.text.x=element_text(angle=90,hjust=1,vjust=1)) + #X axis items location spin and calibration
  theme(axis.text.x=element_text(family="Times",face="bold",colour="#000000",size=8.5)) + #x axis items font set up
  xlab("SPLIT") + ylab("ED_xCAnoDT_L40-Isoff (pA)") + #x and y title definition
  theme(axis.title.y=element_text(family="Times",face="bold",colour="#000000",size=14)) + #y title font set up
  theme(axis.title.x=element_text(family="Times",face="bold",colour="#000000",size=14)) + #x title font set up
  theme(axis.line=element_line(colour="#000000")) + #picture frame line definition
  scale_fill_manual(values=c("#AFAAE0","#FFFAF0","#BFFAF0","#AAAAA0","#FFFAF0","#FFFAF0","#FFFAF0","#FFFAF0","#FFFAF0","#FFFAF0","#FFFAF0","#FFFAF0","#FFFAF0","#FFFAF0","#FFFAF0","#FFFAF0","#FFFAF0","#FFFAF0","#FFFAF0","#FFFAF0","#FFFAF0","#FFFAF0","#FFFAF0","#FFFAF0","#FFFAF0","#FFFAF0","#FFFAF0","#FFFAF0","#FFFAF0","#FFFAF0","#FFFAF0","#FFFAF0")) + #box color definition
  guides(fill=FALSE) + geom_point() +  #add point chart
  annotation_logticks() #show log graduation
p+geom_text(data=median.sum, aes(label=(Site_Value_Nor), y = 500 ), 
            size=3,position=position_dodge(width=0.8))

p+geom_text(data=median.sum, aes(label=round(Site_Value_Nor1,2), y = 500 ), 
            size=3,position=position_dodge(width=0.8))

Hi, can you provide a reproducible example. It would make it easier for people to help you.