how long is the period between the first and last album in the table?
25 years
col : year | album | label | peak chart\npositions\nus | peak chart\npositions\nus r&b row 1 : 1969 | gimme shelter | ode | — | — row 2 : 1971 | celebration | ode | — | — row 3 : 1971 | merry clayton | ode | 180 | 36 row 4 : 1975 | keep your eye on the sparrow | ode | 146 | 50 row 5 : 1979 | emotion | fontana | — | — row 6 : 1994 | miracles | a&m | — | —
how long is the period between the first and last album in the table?
Year Album Label Peak chart\npositions\nUS Peak chart\npositions\nUS R&B
1969 Gimme Shelter Ode — —
1971 Celebration Ode — —
1971 Merry Clayton Ode 180 36
1975 Keep Your Eye on the Sparrow Ode 146 50
1979 Emotion Fontana — —
1994 Miracles A&M — —
25 years