174 



Bulletin 307 



Considering all the orchards for which there are data for yield and income 

 in 1907, the average yield per acre is 33.6 barrels and the average income 

 $91. For 1908 the average yield is again high, amounting to 62.5 

 barrels per acre. The average income per acre for 1908 is $107. The 

 mean (average) yield per acre for the two years 1 907-1 908 is 44 barrels, 

 and the mean income for the same period is $97. The influence of the 

 decidedly poor year, 1907, is shown clearly in these figures. More satis- 

 factory results are obtained in the five-year averages, which show a yield 

 of 55 barrels and an income of $105.50 per acre. 



DISTRIBUTION OF ORCHARDS ACCORDING TO YIELD AND INCOME 



To state the average yield or income per acre does not give an adequate 

 idea of the proportion of the whole group of orchardists getting those re- 

 turns. Table 2, based on the four-year average yields and incomes, 

 shows the observed and percentage frequency* and percentage distribu- 

 tion of orchards according to yield and income. The orchards are arranged 

 in classes differing by 20 barrels per acre in yield, and $40 per acre in in- 

 come. The columns headed " Total per cent " are made up of the sums 

 of percentage frequencies of the consecutive classes from the beginning 

 of the table. 



TABLE 2. Distribution of Orchards According to Four-Year Average Yield 



AND Income 



Yield per acre 

 (bbls.) 



o- 19 

 20- 39 



40- 59 



60- 79 



80- 99 



100-119 



120-140 



Orchards 



No. 



Per 



cent 



10 



27 

 50 

 36 

 27 

 8 

 3 



6.2 

 16.8 

 31.0 

 22.4 

 16.7 



50 

 1.8 



Total 

 per 

 cent 



6.2 

 23.0 

 540 

 76.4 

 93-2 

 98.1 



99 9 



Income per acre. 



Orchards 



Dollars 



0-39 



40- 79 



80-119 



120-159 



160-199. ■ • • 

 200-239 ■ •• ■ 

 240-280. . . . 



Total 

 per 

 cent 



8.7 

 273 

 550 

 79.1 

 92.7 

 98.8 

 99-4 



The typical yield per acre, according to this table, is 50 barrels, the 

 middle value of the class 40-59. Thirty-one per cent of the orchards 

 are in this class. Somewhat less than 50 per cent of the orchards are 

 producing more than 60 barrels per acre. The mean yield per acre, 

 based on the data of Table 2, is nearly 60 barrels. 



* See Appendix, Part II, for explanation of terms. 



