VBA excel. Looking to count a number of times untill the number reappear : i am looking to start count in column B until column A sees the #0. and reset and recount until the next zero and so fourth. thank you in advance.  

       A  B
    1  2  1    
    2  3  2
    3  9  3
    4  5  4
    5  3  5
    6  0  
    7  4  1
    8  5  2
    9  9  3 
    10 0  
    11 7  1  
    .  2  2
    .  5  3
    .  0
