'Year of' in the Bible

On the fifth day of the month, which was the fifth year of king Jehoiachin's captivity,

And it came to pass in the twelfth year of our captivity, in the tenth month, on the fifth day of the month, that one that had escaped out of Jerusalem came unto me, saying, The city is smitten.

In the five and twentieth year of our captivity, in the beginning of the year, on the tenth day of the month, in the fourteenth year after the city was captured, on the very same day the hand of the LORD was upon me, and brought me there.

But if he gives a gift of his inheritance to one of his servants, then it shall be his to the year of liberty; afterward it shall return to the prince: but his inheritance shall be his sons', for them.