This data point isn't super useful without telling us the total size of your class. 5 out of 5–10 is great, 5 out of 25–50 might be realistic, 5 out of 100+, not great.
same here (tough we were 32 guys and 3 women). - germany, still have relationship with teachers, they barly see more than 3 girls/30 in 5 classes per year.