## Where can the data take you? All over the world!

GeoFRED^{®} allows you to create, customize, and share geographical maps of data
found in FRED^{®}. Easily access the details and adjust how the data are displayed.
You can also transform the data and download it according to geographic category and time frame.

## Units Formulas

The following formulas are used to transform units:

**Change**

x(t) - x(t-1)

**Change from Year Ago**

x(t) - x(t-n_obs_per_yr)

**Percent Change**

((x(t)/x(t-1)) - 1) * 100

**Percent Change from Year Ago**

((x(t)/x(t-n_obs_per_yr)) - 1) * 100

**Compounded Annual Rate of Change**

(((x(t)/x(t-1)) ** (n_obs_per_yr)) - 1) * 100

**Continuously Compounded Rate of Change**

(ln(x(t)) - ln(x(t-1))) * 100

**Continuously Compounded Annual Rate of Change**

((ln(x(t)) - ln(x(t-1))) * 100) * n_obs_per_yr

**Natural Log**

ln(x(t))

**Notes:**

'x(t)' is the value of series x at time period t.

'n_obs_per_yr' is the number of observations per year. The number of observations per year differs by frequency:

Frequency | Observations per Year |
---|---|

Daily | 260 (no values on weekends) |

Annual | 1 |

Monthly | 12 |

Quarterly | 4 |

Biweekly | 26 |

Weekly | 52 |

'ln' represents the natural logarithm.

'**' represents to the power of.

Country names and other labels for GeoFRED maps correspond with those used by the United Nations. Country names and other labels within individual data series correspond with those used by the source of the data. These sources include the United Nations, the OECD and the World Bank, among others.

Map data sources include: ESRI, Tele Atlas, U.S. Census Bureau, and Natural Earth.