It differs actually for many people and there is hard to generalise.
After my graduate education and first degree I have applied 40 times and 39 times were rejected before I get in first job offer. However, please, bare in mind that I was foreign international student from non-EU country applying in Germany, in German language and had already a huge disadvantage.
Then 3 years afterwards, having all the neccessary "know-how", I applied 7 times and got 3 job offers.
So as you see, you learn and your chances will improved.
If you need further insights in order how to secure your job interviews nowadays and how to convert them into offers, drop me a line. Happy to share my experience and give you the latest market insights.