In the United States, the industrial revolution of the early 20th century changed farming by making it more efficient. For example, in 1910 U.S. farms used 24.2 million horses and mules and only about 1,000 tractors. By 1960, 4.6 million tractors were used and only 3.2 million horses and mules. An outcome of making farming more efficient is the reduction of the number of farms from over 6 million in 1920 to about 2.2 million farms today. Listed below is the number of farms, in thousands, for each of the 50 states. Summarize the data and write a paragraph that describes your findings.

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21 55 32 78 248 17 49 1 16 482 36 5 2 48 47 8 26 76 62 92 66 86 30 8 13 8 55 42 108 29 47 3 10 21 36 5 32 75 87 39 63 27 47 40 23 78 11