如何用python找到txt文件中指定内容并且显示总数据

[走在菜鸟边的书生]

Tue Nov 15 08:00:49 CST 2016
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Tue Nov 15 08:00:59 CST 2016
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Tue Nov 15 08:01:09 CST 2016
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Tue Nov 15 08:01:19 CST 2016
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Tue Nov 15 08:01:29 CST 2016
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Tue Nov 15 08:01:39 CST 2016
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Tue Nov 15 08:01:49 CST 2016
0x09
Tue Nov 15 08:01:59 CST 2016
0x09
Tue Nov 15 08:02:09 CST 2016
0x09
Tue Nov 15 08:02:19 CST 2016
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Tue Nov 15 08:02:29 CST 2016
0x09
Tue Nov 15 08:02:39 CST 2016
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Tue Nov 15 08:02:49 CST 2016
我是个刚入门的菜鸟求大神帮助，怎样知道文件内容中CST 2016次数怎么打印出来。

[肆水東澤]

    with open("test.txt", "r") as f:  # 打开文件
        data = f.read()  # 读取文件
        c = data.count("CST 2016")
        print(c)