| Elements | Availability |
|---|---|
| GLOBAL | 1957 - 2008 |
| DIFFUSED | 1957 - 2008 |
| BIMETALLIC | 1970 - 2003 |
| TERRESTRIAL | 1990 - 2006 |
| DIRECT SOLAR ( â-coeff.) | 1997 - 2006 |
| GLOBAL - INCLINED PLANE | 1984 - 2006 |
| NET | 1964 - 2007 |
| DIRECT | 1984 - 2008 |
| REFLECTED | 1986 - 2007 |
| MONTHLY MEANS | 1957 - 2008 |
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