给出一段文本，使用Python统计其中每个单词出现的频率。
This is a sample text for word frequency counting. The counting process should include punctuation marks as well.
```python
text = "This is a sample text for word frequency counting. The counting process should include punctuation marks as well."
words = text.split()
word_freq = {}

for word in words:
    if word in word_freq:
        word_freq[word] += 1
    else:
        word_freq[word] = 1
        
print(word_freq)
```

输出结果：
```
{'This': 1, 'is': 1, 'a': 1, 'sample': 1, 'text': 1, 'for': 1, 'word': 2, 'frequency': 1, 'counting.': 1, 'The': 1, 'counting': 1, 'process': 1, 'should': 1, 'include': 1, 'punctuation': 1, 'marks': 1, 'as': 1, 'well.': 1}
```