Please help me to count specific values in a table.

I have some data in this form:

```
var data = {
    "metadata": ["FZ", "CS", "CU", "CZ"],
        "values": [
        ["CON", "184.0", "null", "null"],
        ["ERG SRL", "35.0", "null", "57.0"],
        ["IO", "6.0", "null", "null"],
        ["IND", "null", "1753.0", "null"],
        ["LIXL", "1644.0", "null", "3748.0"],
        ["MOXRL", "2285.0", "null", "0.0"],
        ["MOLXL", "11.0", "null", "0.0"],
        ["MURX", "5362.0", "null", "275.0"],
        ["STRL", "197.0", "null", "39.0"]
    ]
};

```

Here are the [results on jsbin](http://jsbin.com/ogewaj/2/edit). 
In that table I have some values like `null`, `0.0` and other.

All I want is to count this values on their key:
EXAMPLE:
This is my table:

```

FZ      CS       CU     CZ
CON     184.0   null    null
ERG     35.0    null    57.0
IO      6.0     null    null
IND     null    1753.0  null
LIXL    1644.0  null    3748.0
MOXRL   2285.0  null    0.0
MOLXL   11.0    null    0.0
MURX    5362.0  null    275.0
STRL    197.0   null    39.0

```

Here is the result I want:

```

       CS  CU CZ
all     9  9  9
null    1  8  3
0.0     0  0  2
>0      8  1  4

```

The only result was when I count cell in generated tables, but this is not good if I want to have pagination.

I tried `.length()`, `count++` based on several answers on stackoverflow.com, but no result.

Thank you all for hints and answers.