Can you only apply for the D visa after 5 years of marriage

I have only been married to my Chinese wife since May 2016, and I have been in China since November 2012. Can you only apply for the D visa after 5 years of marriage, or would me being in the country for 5 years at the end of this year be enough to apply?

My wife and I intend on staying in China, so it makes sense for me to try and go on the D visa if possible so that things are more secure than a year by year work visa and work contract.

If it is only available after 5 years of marriage then obviously thats the route we will go down, but if its possible with me being here for so long already, then rather sooner than later.