CNMI Consumer Price Index: TINIAN

Explanatory NotesQuarterly InflationAnnual InflationFurther Analysis of the IndexAppendix

CPI Construction and Methodology

Survey Overview
Household Sample
Selection of the Item Sample
Expanding the Major Groups
Expansion of the Outlet Sample
Data Collection and Price Review Manual
Linking the Old and New CPIs
Changing the Base Period
Calculationg the Consumer Price Index

Section 1: Quarterly Inflation

Table 4 below shows the quarterly inflation rate for each quarter since the 2ndquarter 2010, by group.
As can be seen from this table the index increased by 0.7 percent for the 1st quarter 2017.
The trend for “All Items” can also be seen in Chart 6 on the following page, illustrating fluctuating change in the quarterly price change over the last 6 years.
Chart 7 shows “Housing & Utilities” group had an increase of 2.6 percent followed closely by “Transportation” group (2.1 percent), while “Apparel” group showed the largest decrease of 5.0 percent. All other groups showed negligible changes.

CNMI CPI Table4: Quarterly Inflation, by Group, Tinian

    All Items Food Alcoholic Beverages Housing & Utilities Apparel Transportation Medical Care Recreation Education & Communication Other Goods & Services
Source: CNMI Consumer Price Index
2017 2nd Qtr 0.8 -0.3 0.0 -1.0 4.4 0.0 0.0 18.0 0.7 0.0
2017 1st Qtr 0.7 0.3 0.0 2.6 -5.0 2.1 0.0 0.8 0.0 0.3
2016 4th Qtr -0.2 0.1 0.1 1.3 0.0 0.5 0.0 -0.3 0.0 -7.1
2016 3rd Qtr 0.2 0.8 -0.1 -0.6 0.0 2.2 0.0 0.2 0.0 0.8
2016 2nd Qtr 1.5 -0.1 0.0 5.4 0.0 0.0 0.0 0.0 0.0 0.0
2016 1st Qtr -1.0 0.9 0.0 -5.4 -0.1 -2.8 0.0 14.8 0.0 0.4
2015 4th Qtr -0.2 0.0 0.0 -0.5 0.1 -0.2 0.0 0.0 0.0 -0.4
2015 3rd Qtr -1.9 0.1 0.0 -5.3 -0.2 -4.0 0.0 -0.1 0.0 -0.1
2015 2nd Qtr 1.4 0.6 0.0 3.8 0.0 1.4 0.0 -1.1 0.0 0.1
2015 1st Qtr -3.4 1.6 0.0 -10.2 2.4 -5.2 -0.7 0.4 -2.0 0.4
2014 4th Qtr -1.4 0.3 0.0 -5.0 0.0 -5.2 0.0 0.0 -0.3 9.9
2014 3rd Qtr 0.6 4.0 0.0 -1.6 2.0 2.7 0.0 -0.2 0.1 0.4
2014 2nd Qtr 1.0 1.3 2.2 2.0 0.0 0.0 0.0 0.5 0.0 0.3
2014 1st Qtr -0.3 0.3 1.8 -1.5 2.2 0.0 -0.1 -1.3 -0.7 0.3
2013 4th Qtr 0.1 0.1 0.0 0.2 0.0 0.0 0.0 0.0 0.4 0.0
2013 3rd Qtr -1.4 0.2 0.3 -0.3 -0.6 0.5 -9.2 -0.8 0.3 -0.4
2013 2nd Qtr 0.1 1.9 0.0 -0.4 -1.8 0.0 0.0 2.2 0.3 -0.8
2013 1st Qtr 0.4 0.2 -0.2 1.2 -0.9 -0.4 0.3 0.5 -3.2 1.7
2012 4th Qtr 3.0 0.4 2.1 2.6 -1.8 -0.3 15.2 -0.5 3.3 0.6
2012 3rd Qtr -0.3 -0.2 -0.9 -0.4 -1.8 1.6 0.0 -1.1 -0.3 -0.5
2012 2nd Qtr 0.3 0.9 2.9 -0.7 -0.9 3.1 0.0 -0.6 0.0 2.1
2012 1st Qtr 2.3 0.7 0.1 7.1 -0.1 -0.6 -2.0 3.9 0.7 -0.3
2011 4th Qtr 0.3 2.2 0.1 -1.0 -0.2 -0.6 1.4 0.0 0.0 0.7
2011 3rd Qtr 3.5 1.2 0.1 3.8 0.3 1.6 13.0 7.3 0.0 0.3
2011 2nd Qtr 0.6 0.0 0.0 0.0 -0.8 8.2 0.0 -0.2 -0.2 0.0
2011 1st Qtr 0.9 -1.2 1.9 2.1 -0.9 3.4 0.0 -0.7 0.2 2.4
2010 4th Qtr 3.3 -1.3 -2.0 4.9 -0.3 -0.4 19.5 -0.4 -0.6 1.1
2010 3rd Qtr -0.3 -0.2 0.0 -0.9 0.3 0.7 0.0 0.0 -0.3 0.0
2010 2nd Qtr 1.3 -1.1 2.1 5.2 -4.0 1.1 0.0 -0.3 0.5 1.6

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CNMI CPI Chart6 2017

CNMI CPI Chart7 2017

Section 2: Annual Inflation

Table 5 below shows the annual inflation for Tinian for the last 5 years ending 1st quarter, 2017.
As can be seen from the table, there was an increase in the annual inflation for All Items in 1st quarter 2017.
Chart 9 shows additional annual inflation analysis by group for the 1st quarter 2017.
From this graph it can be seen that “Housing & Utilities” group had the highest annual increase of 8.8 percent over the last 12 months.

CNMI CPI Table5: Annual Inflation, by Group, Tinian

    All Items Food Alcoholic Beverages Housing & Utilities Apparel Transportation Medical Care Recreation Education & Communication Other Goods & Services
Source: CNMI Consumer Price Index
2017 1st Qtr 2.2 1.0 0.0 8.8 -5.0 4.9 0.0 0.7 0.0 -6.1
2016 1st Qtr -1.8 1.6 0.0 -7.5 -0.2 -5.5 0.0 13.4 0.1 0.0
2015 1st Qtr -3.1 7.3 2.2 -14.4 4.5 -7.8 -0.7 0.7 -2.3 11.1
2014 1st Qtr -1.5 2.4 2.1 -1.9 -0.2 0.5 -9.2 0.0 0.2 -0.9
2013 1st Qtr 3.4 1.3 3.9 2.7 -5.3 3.9 15.6 -1.7 -0.3 4.0
2012 1st Qtr 6.8 4.1 0.3 10.0 -0.8 8.6 12.3 11.2 0.5 0.6
2011 1st Qtr 5.4 -3.7 2.0 11.8 -4.9 4.9 19.5 -1.5 -0.2 5.1

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CNMI CPI Chart8 2017

CNMI CPI Chart9 2017

Section 3: Further Analysis of the Index

Table 6 and Chart 10 below show the change in the index since the CPI was established in 1st Quarter 2010.
The analysis shows ”Medical Care” has had the most significant increase in this period with the index rising by about 40 percent during this period, while “Recreation” was next largest with an increase of 22 percent during this time.

CNMI CPI Table6: Consumer Price Index, by Group, Tinian

    All Items Food Alcoholic Beverages Housing & Utilities Apparel Transportation Medical Care Recreation Education & Communication Other Goods & Services
Source: CNMI Consumer Price Index
2017 2nd Qtr 112.2 114.2 110.9 105.6 92.3 108.7 139.8 146.3 98.7 113.8
2017 1st Qtr 111.4 114.6 110.9 106.8 88.3 108.7 139.8 123.9 98.0 113.8
2016 4th Qtr 110.7 114.3 110.9 104.1 93.0 106.5 139.8 122.9 98.0 113.4
2016 3rd Qtr 110.9 114.3 110.8 102.8 93.0 105.9 139.8 123.3 98.0 122.1
2016 2nd Qtr 110.6 113.4 110.9 103.4 93.0 103.7 139.8 123.0 98.0 121.1
2016 1st Qtr 109.0 113.5 110.9 98.1 93.0 103.7 139.8 123.0 98.0 121.1
2015 4th Qtr 110.1 112.5 110.9 103.8 93.1 106.6 139.8 107.2 98.0 120.7
2015 3rd Qtr 110.3 112.5 110.9 104.3 93.0 106.9 139.8 107.2 98.0 121.1
2015 2nd Qtr 112.5 112.4 110.9 110.1 93.2 111.3 139.8 107.3 98.0 121.3
2015 1st Qtr 111.0 111.7 110.9 106.0 93.2 109.7 139.8 108.5 98.0 121.1
2014 4th Qtr 114.8 109.9 110.9 118.1 91.0 115.8 140.8 108.1 100.0 120.7
2014 3rd Qtr 116.4 109.6 110.9 124.4 91.0 122.2 140.8 108.1 100.3 109.8
2014 2nd Qtr 115.7 105.3 110.9 126.4 89.2 119.0 140.8 108.3 100.2 109.4
2014 1st Qtr 114.6 104.0 108.5 123.9 89.2 119.0 140.8 107.8 100.2 109.0
2013 4th Qtr 114.9 103.8 106.5 125.7 87.2 119.0 140.9 109.2 101.0 108.7
2013 3rd Qtr 114.8 103.7 106.5 125.4 87.2 119.0 140.9 109.2 100.6 108.7
2013 2nd Qtr 116.5 103.5 106.2 125.7 87.8 118.4 155.1 110.2 100.3 109.2
2013 1st Qtr 116.3 101.6 106.2 126.3 89.4 118.4 155.1 107.8 100.1 110.0
2012 4th Qtr 115.9 101.4 106.5 124.8 90.2 119.0 154.6 107.2 103.3 108.2
2012 3rd Qtr 112.5 101.0 104.2 121.6 91.8 119.3 134.2 107.7 100.0 107.6
2012 2nd Qtr 112.8 101.2 105.2 122.1 93.6 117.5 134.2 108.9 100.3 108.1
2012 1st Qtr 112.5 100.3 102.3 123.0 94.4 114.0 134.2 109.6 100.3 105.8
2011 4th Qtr 110.0 99.6 102.2 114.9 94.4 114.6 137.0 105.5 99.7 106.2
2011 3rd Qtr 109.7 97.5 102.1 116.0 94.6 115.3 135.0 105.5 99.7 105.5
2011 2nd Qtr 106.0 96.3 102.0 111.8 94.4 113.5 119.5 98.3 99.6 105.1
2011 1st Qtr 105.4 96.3 102.0 111.8 95.1 104.9 119.5 98.5 99.8 105.1
2010 4th Qtr 104.4 97.5 100.1 109.4 96.0 101.5 119.5 99.2 99.6 102.7
2010 3rd Qtr 101.1 98.7 102.1 104.3 96.3 101.8 100.0 99.6 100.2 101.6
2010 2nd Qtr 101.3 98.9 102.1 105.2 96.0 101.1 100.0 99.7 100.5 101.6
2010 1st Qtr 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0

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CNMI CPI Chart10 2017

CNMI CPI Appendix 3 – CPI Weights for each Islands

    Saipan Tinian Rota
Source: CNMI Consumer Price Index
Food All Food 17.1083 21.0482 12.9058
Food Cereal Products 2.7052 4.6227 2.6345
Food Meat Products 4.0402 6.0270 3.1488
Food Seafood Produce 1.4994 0.8986 N/A
Food Dairy Produce 1.5335 2.0349 1.4826
Food Fruit 0.3195 0.5851 0.0762
Food Vegetables 1.0487 1.1897 0.9914
Food Non-alcoholic Beverages 1.6493 2.8072 1.5779
Food Confectionery 0.3072 0.2004 0.2269
Food Miscellaneous Food 0.5690 1.2973 0.5522
Food Take-away Food 3.4363 1.3853 2.2153
Alcoholic Beverages Alcoholic Beverages 1.3768 3.1933 1.5890
Housing & Utilities All Housing & Utilities 30.3859 31.1513 44.6249
Housing & Utilities Housing 15.1278 7.8888 13.7889
Housing & Utilities Utilities 10.0594 12.0407 14.5987
Housing & Utilities Household Goods/Furniture 1.0887 5.3456 2.0813
Housing & Utilities Household Maintenance 4.1101 5.8762 14.1559
Apparel All Apparel 6.1443 8.7016 7.8026
Apparel Mens Clothng 1.7022 2.9283 1.5850
Apparel Womens Clothing 2.0195 3.0038 2.4739
Apparel Infant Clothing 0.6881 0.5074 0.7567
Apparel Footwear 1.2561 1.8681 2.5288
Apparel Accessories 0.4783 0.3942 0.4582
Transportation All Transportation 22.2282 7.9752 10.3137
Transportation Vehicle Purchase 13.8896 0.4586 2.1391
Transportation Vehicle Maintenance 7.2386 5.3267 7.6918
Transportation Public Transport 1.1000 2.1900 0.4827
Medical Care All Medical Care 10.6622 10.8923 9.3760
Medical Care Medical Supplies 1.2291 1.3909 2.3924
Medical Care Medical Services 9.4330 9.5014 6.9836
Recreation Recreation 3.3994 4.0032 2.2680
Education & Communication Education & Communication 5.6292 5.7111 2.9257
Education & Communication Education 0.6395 0.6188 0.4815
Education & Communication Communication 4.9897 5.0923 2.4442
Other Goods & Services All Other Goods & Services 3.0656 7.3237 8.1944
Other Goods & Services Cigarettes & BetelNut 1.7380 2.6558 4.1746
Other Goods & Services Other Goods 0.5353 0.4458 0.3478
Other Goods & Services Other Services 0.7923 4.2221 3.6719