I went to https://adwords.google.com/select/KeywordToolExternal and i studied some keywords and for example "fishing" and average 8 million a month and now for february it was searched only 300,000 times. This is the same with many keywords i typed in. Any reasons why this happened please give me your thoughts.
No, it might just not be as common a search term that month. People are searching on google almost more than ever with Firefox's market penetration.