Can i get a contact lense of power -0.73?

[vikash]

I have checked many online shops. All the shops sells contacts lenses as category-
1) -0.50
2) -0.75
3) -1.00
4) -1.25
5) -1.50
6) -1.75
7) -2.00
and so on....
Where the hell is -0.73 in the category?
i need lenses of -0.73
i cant see clear with -0.75 so i can't compromise
Can i get a contact lenses of power -0.73?