problem while putting labels outside

Dear R community,

I am trying to put labels outside but not getting any possible way. Please somebody try to help me?
table <- table(Cars93$Type)
frame <- data.frame(table)
frame$rel <- round(frame$Freq/sum(frame$Freq), digits = 2)
lbls <- paste(frame$Var1, frame$rel, "%")
pie3D(table, labels = lbls, radius = 2, explode = 0.2,
height = 0.1, main = "Distribution of car types")

Thanks in advance


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