A customer satisfaction survey for a new product recorded ratings on a scale of $1$ (poor) to $5$ (excellent). $5\%$ of customers gave a rating of $1$, $10\%$ gave a rating of $2$, $35\%$ gave a rating of $3$, $25\%$ gave a rating of $4$, and the rest gave a rating of $5$. What is the difference between the mean and the median rating?